Head-worn Loupe KS
Transcription
Head-worn Loupe KS
Kapitel_A_20-696_ENG.qxd 15.04.2009 14:43 Uhr Seite 1 Foreword Good vision – with or without an optical aid – is now becoming more and more important in our everyday lives, regardless of whether we are at work or enjoying a hobby in our leisure time. However, there are certain tasks or degrees of visual deficiency which demand special solutions beyond the capabilities of such traditional visual aids as spectacles or contact lenses. Carl Zeiss Vision has been involved in the field of “Special Visual Aids” for several decades now. In 1908 the company presented the first telescopic spectacles for severely short-sighted wearers which Moritz von Rohr had designed on the basis of Gullstrand‘s theory of image formation. This was followed by a large number of innovative magnifying visual aids. Today, Carl Zeiss Vision offers an extensive range of magnifying visual devices. The information provided in the catalogue is intended to assist you in your practical work. In the blue section the products are presented with their technical and optical data. Prices are given in the green section. In every magnifying visual aid which the company produces, Carl Zeiss Vision attaches top priority to providing the wearer with a product which is precisely tailored to meet the needs of the task or situation concerned or, in the case of low vision aids for people with severe visual handicaps, with a product which ensures that maximum visual performance is achieved. This means: outstanding image quality and a large field of view at the same time. Often the lowest possible magnification will then suffice. Certification to ISO 9000 testifies to the high standard of quality achieved by Carl Zeiss Vision – from product development to customer care. This includes a wide range of seminars and courses, in which the prescription and fitting of magnifying optical aids are 20-696 e-III/2009 explained. The information contained in this catalogue is intended to assist you in your everyday work. Each section includes a general introduction to the products available from Carl Zeiss Vision. Technical and optical information is given in the description of the product involved. Kapitel_A_20-696_ENG.qxd 15.04.2009 14:43 Uhr Seite 3 20-696 e-III/2009 Products Contents Magnifiers and Loupes A Low Vision Devices B Magnifying Visual Devices for Professional Users C Fitting Devices D Special Filter Lenses E Tips, Info and Ordering F Kapitel_A_20-696_ENG.qxd 15.04.2009 14:43 Uhr Seite 5 Products Contents Magnifiers and Loupes from Carl Zeiss Vision A Background Information A1 Aplanatic-achromatic Pocket Magnifiers A3 VisuLook classic (Aspheric Hand Magnifiers) A5 Head-worn Loupe L A7 Head-worn Loupe LC A9 VisuLook Style (Hand Magnifers) A11 VisuLight M (Illuminated Pocket Magnifiers) A13 20-696 e-III/2009 VisuLight S (Illuminated Stand Magnifiers) A15 Kapitel_A_20-696_ENG.qxd 15.04.2009 14:43 Uhr Seite 7 Background Information Optimum matching of refracting power and diameter The size of the field of view is of decisive importance for the practical benefits offered by a visual aid. If possible, the user must be able to see his entire field of action. In the magnifiers produced by Carl Zeiss Vision, the optically effective diameter of each magnifier is optimally adapted to its refracting power. Image quality Uncompromising image quality is essential if all details are to recognized and the magnification is not to be unnecessarily high. The use of the aid is also considerably simplified, as the size of the field of view, the depth of focus and working distances all remain comfortable for the wearer. The optics of the hand magnifiers are aspherically designed and, with full utilization of the magnifying power, provide optimum image quality. The pocket magnifiers are multilens systems which guarantee a distortion-free image with no chromatic aberrations. Aspheric hand magnifiers with hard protective and multilayer AR coatings The lenses of the aspheric hand magnifiers are made of the material PMMA. To protect the surfaces against mechanical damage, they are always delivered with a hard protective coating. The additional broadband antireflection coating ensures maximum reduction of reflections. This is available for the VisuLook classic 20-696 e-III/2009 hand magnifiers. A1 Kapitel_A_20-696_ENG.qxd 15.04.2009 14:43 Uhr Seite 8 Backround Information Antireflection coating for pocket magnifiers The lenses of the pocket magnifiers are made of a glass material. Surface reflections are substantially reduced by the standard antireflection coating. Practical labelling The magnification of a magnifier is dependent on various factors present during use, including the using distances (distance between the magnifier and the eye, and that between the magnifier and the object). All magnifiers from Carl Zeiss Vision are therefore labelled 20-696 e-III/2009 with their refracting power. A2 Kapitel_A_20-696_ENG.qxd 15.04.2009 14:43 Uhr Seite 9 Aplanatic-achromatic Pocket Magnifiers Aplanatic-achromatic pocket magnifiers from Carl Zeiss Vision are indispensable aids for many tasks – particularly in industry, research and the skilled trades – where precise vision is of the essence. Their small dimensions also make them useful for persons with severe visual handicaps, e.g. for use when out and about. The aplanatic-achromatic pocket magnifiers are labelled with their refracting power (D), which can be used to calculate the respective magnification on the basis of the conditions of use. These magnifiers provide a distortion-free image without chromatic aberration over the entire field of view. The product range includes the refracting powers 24 D and 40 D, and a double pocket magnifier 12 D + 24 D = 36 D. The lenses come standard with an antireflection 20-696 e-III/2009 coating. Valid from January 1, 2009, Subject to change A3 Kapitel_A_20-696_ENG.qxd 15.04.2009 14:43 Uhr Seite 10 Aplanatic-achromatic Pocket Magnifiers Technical data Refracting (D) Magnification Optically Optimum conditions of use power for reference effective Using distance distance of diameter Field of view 0.25 m (D/4) 24 D 6x 22 mm 35 mm 10 mm 52 mm 40 D 10x 13 mm 20 mm 10 mm 22 mm 22 mm 25/35/80 mm 10 mm 32/52/127 mm 36 D 9x = 6x + 3x Valid from January 1, 2009, Subject to change A4 20-696 e-III/2009 = 24 D +12 D Kapitel_A_20-696_ENG.qxd 15.04.2009 14:43 Uhr Seite 11 VisuLook classic Aspheric Hand Magnifiers Hand magnifiers facilitate many of the tasks we perform at work and in our private lives that require detailed, precise vision. The “VisuLook classic” product line from Carl Zeiss Vision contains five hand magnifiers featuring a classic design. Image quality and distortion – with utilization of the highest possible magnification – have been optimized so that no aberrations of any consequence occur. The hand magnifiers are labelled with their refracting power (D), which can be used to calculate the magnification on the basis of the conditions of use. The hand magnifiers come standard with a hard protective coating. A Super ET antreflection coating can additionally be chosen. Every magnifier is supplied 20-696 e-III/2009 with a matching case. Valid from January 1, 2009, Subject to change A5 Kapitel_A_20-696_ENG.qxd 15.04.2009 14:43 Uhr Seite 12 VisuLook classic Aspheric Hand Magnifiers Technical data Refracting (D) Magnification Optically Optimum conditions of use power for reference effective Using distance distance of diameter Magnifi- Field of cation view 0.25 m 6D 1.5x 100 mm 145 mm 185 mm 2.1 x 90 mm 8D 2 x 85 mm 110 mm 220 mm 2.7 x 50 mm 12 D 3 x 70 mm 70 mm 210 mm 3.5 x 30 mm 16 D 4 x 60 mm 55 mm 130 mm 3.25x 30 mm 20 D 5 x 55 mm 40 mm 90 mm 3.1 x 28 mm Valid from January 1, 2009, Subject to change A6 20-696 e-III/2009 (D/4) Kapitel_A_20-696_ENG.qxd 15.04.2009 14:43 Uhr Seite 13 Head-worn Loupe L Head-worn loupe with binocular loupe component for stereoscopic near vision, also suitable for spectacle wearers. The Head-worn Loupe L is suitable for situations where low magnifications are sufficient. The user's hands remain free to perform whatever task is required. The vertically adjustable visor with lateral shielding prevents stray light from impairing the wearer's vision and can be easily swung out of the field of view, if required. To enhance wearing comfort, the headband is fitted with an exchangeable textile pad. A spare pad is included with the loupe on delivery. The elastic rear headband can be set to whatever length is needed. The Head-worn Loupe L is available with the powers 4 D or 6 D. The binocular loupe components are easy to change and can also be used on the Head-worn 20-696 e-III/2009 Loupe LC. Valid from January 1, 2009, Subject to change A7 Kapitel_A_20-696_ENG.qxd 15.04.2009 14:43 Uhr Seite 14 Head-worn Loupe L Technical data Refracting (D) Optically Conditions of use power effective Using distance Magnification diameter Binocular field of view (R/L each) 4D 40 x 30 mm 200 mm 60 mm 1.25 x 83 x 100 mm 6D 40 x 30 mm 140 mm 60 mm 1.4 x 72 x 75 mm Valid from January 1, 2009, Subject to change A8 20-696 e-III/2009 Weight: approx. 110 g Kapitel_A_20-696_ENG.qxd 15.04.2009 14:43 Uhr Seite 15 Head-worn Loupe LC Loupe clip with binocular loupe component for stereoscopic near vision, for attachment to most prescription glasses. The Head-worn Loupe LC is suitable for situations requiring a low magnification. The user's hands remain free to perform whatever task is required. Angled gripping surfaces make it easy for the user to attach the clip without having to remove his glasses. Non-slip caps on the peg prevent scratching of spectacle lenses. The height and tilt of the loupe components can be set as required. The Head-worn Loupe LC is supplied in a plastic box and is available with the powers 4 D or 6 D. The binocular loupe components are easy to change and can 20-696 e-III/2009 also be used on the Head-worn Loupe L. Valid from January 1, 2009, Subject to change A9 Kapitel_A_20-696_ENG.qxd 15.04.2009 14:43 Uhr Seite 16 Head-worn Loupe LC Technical data Refracting (D) Optically Conditions of use power effective Using distance Magnification diameter Binocular field of view (R/L each) 4D 40 x 30 mm 200 mm 60 mm 1.25 x 83 x 100 mm 6D 40 x 30 mm 140 mm 60 mm 1.4 x 72 x 75 mm Valid from January 1, 2009, Subject to change A10 20-696 e-III/2009 Weight: approx. 20 g Kapitel_A_20-696_ENG.qxd 15.04.2009 14:44 Uhr Seite 17 VisuLook Style Aspheric Hand Magnifiers Many of the tasks we perform in our daily work or hobbies require precise, detailed vision. This is often made easier by the use of hand magnifiers. The “VisuLook style” product line from Carl Zeiss Vision contains three hand magnifiers featuring a modern design. The magnifiers are graded according to their dioptric power. Their aspheric optics are adapted to the respective conditions of use. The hand magnifiers image the viewed object at a distance of 40 cm from the eye (position of the virtual image). This allows the image to be clearly seen with the normal near correction. The hand magnifiers come standard with a hard protective coating. The end of the magnifier handle features a pull-out 20-696 e-III/2009 eyelet through which a neck cord can be threaded. Valid from January 1, 2009, Subject to change A11 Kapitel_A_20-696_ENG.qxd 15.04.2009 14:44 Uhr Seite 18 VisuLook Style Aspheric Hand Magnifiers Technical Data Product name Refracting Lens size power (D) Magnification Optimum using distances at reference distance 0.25 m (D/4) Text – Magnifier Magnifier – Eye D 8H 8.0 D 100 x 50 mm 2.0 x 60 mm 250 mm D 10 H 10.0 D 75 x 50 mm 2.5 x 60 mm 200 mm D 16 H 16.0 D 4.0 x 45 mm 150 mm l 70 mm Valid from January 1, 2009, Subject to change A12 20-696 e-III/2009 products will be discontinued, availability on request Kapitel_A_20-696_ENG.qxd 15.04.2009 14:44 Uhr Seite 19 VisuLight M Illuminated Pocket Magnifiers Illuminated magnifiers are used for applications in which magnification and illumination are required in combination. The use of the right illumination allows considerable reduction of the magnification needed. The VisuLight M illuminated pocket magnifiers are intended primarily for fast use in the home environment: short-time reading of small print, looking for telephone numbers, etc. And they are also the perfect companions for use as a reading aid when you are out and about. The magnifiers are graded according to their dioptric powers. Their aspheric optics are adapted to the respective conditions of use. The illuminated pocket magnifiers image the viewed object at a distance of 40 cm from the eye (position of the virtual image). This means the image can be clearly seen with the normal near correction. The lenses of the VisuLight M come standard with a hard protective coating. The illumination is provided via LED illumination, whose life cycle is so long that there is no need 20-696 e-III/2009 to change the LED. Valid from January 1, 2009, Subject to change A13 Kapitel_A_20-696_ENG.qxd 15.04.2009 14:44 Uhr Seite 20 VisuLight M Illuminated Pocket Magnifiers Technical Data Product name Refracting Lens diameter power (D) Magnification Optimum using distances at reference distance 0.25 m (D/4) Text – Magnifier Magnifier – Eye D 12 H 12.0 D l 60 mm 3.0 x 50 mm 250 mm D 16 H 16.0 D l 60 mm 4.0 x 60 mm 100 mm D 20 H 20.0 D l 58 mm 5.0 x 35 mm 140 mm product will be discontinued, abvailability on request Power supply: 2 batteries of the type 1.5 V AA (included on delivery) or 2 rechargeable batteries (not included on delivery). Battery change: Battery compartment can be opened by using a separate switch on the bottom of the instrument. White light LED, 52 mA. Weight (without batteries): Valid from January 1, 2009, Subject to change A14 approx. 72 g 20-696 e-III/2009 Illumination: Kapitel_A_20-696_ENG.qxd 15.04.2009 14:44 Uhr Seite 21 VisuLight S Illuminated Stand Magnifiers Illuminated magnifiers are used for applications in which magnification and illumination are required in combination. The use of the right illumination allows considerable reduction of the magnification needed. The VisuLight S illuminated stand magnifiers are intended primarily for home use. The magnifier lies on top of the reading material, making it suitable for long periods of use. Illuminated stand magnifiers are particularly beneficial for users who cannot hold the magnifier steady due to hand tremor. The magnifiers are graded according to their dioptric powers. Their aspheric optics are adapted to the respective conditions of use. The illuminated stand magnifiers image the viewed object at a distance of 40 cm from the eye (position of the virtual image). This means the image can be clearly seen with the normal near correction. The lenses of VisuLight S come standard with a hard protective coating. The illumination is provided via LED illumination, whose life cycle is so long that there is no need to change the LED. The VisuLight S D 8 H – with a rectangular lens frame – features an additional, swing-in magnification of 4 D for reading small print. In the VisuLight S D 12 H and D 16 H a reading line can be swung into position, allow- 20-696 e-III/2009 ing easier line orientation within the text. Valid from January 1, 2009, Subject to change A15 Kapitel_A_20-696_ENG.qxd 15.04.2009 14:44 Uhr Seite 22 VisuLight S Illuminated Stand Magnifiers Technical Data Product name Refracting Lens Magnification power (D) size distance Optimum using distances at reference distance 0.25 m (D/4) Magnifier – Eye D 8H 8.0 D 100 x 50 mm 2.0 x 250 mm D 12 H 12.0 D l 80 mm 3.0 x 250 mm D 16 H 16.0 D l 70 mm 4.0 x 150 mm product will be discontinued, availability on request Power supply: 2 batteries of the type Baby 1.5 V (not included on delivery) or 2 rechargeable batteries (not included on delivery). Battery change: Via screw-off end cap on the magnifier handle. 2 white LEDs, 123 mA. Weight (without batteries): Valid from January 1, 2009, Subject to change A16 approx. 210 g 20-696 e-III/2009 Illumination: Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:54 Uhr Seite 1 Products Contents Low Vision Devices from Carl Zeiss Vision B Background Information B1 Magnifying Bifocal S 25 B7 Magnifying Bifocal R 22 B9 Magnifying Bifocal R 20 B11 Telescopic Spectacles G 1.8 B13 Telescopic Spectacles G 2.2 B15 Telescopic Spectacles K 4 B17 Telescopic Spectacles K 4 vario B19 Telescopic Spectacles K 4 bino B21 Teleloupe Spectacles K bino B23 System Carrier STMS™ B25 B 20-690 e-III/2009 System Carriers for Magnifying Visual Devices B27 Hand Telescopes B29 Magnifying Eyeglasses Concept bino ET B31 sold out Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:54 Uhr Seite 3 Background Information Magnifying Bifocals S 25, R 22 and R 20 Magnifying spectacles are glasses with lenses which display a high positive refracting power. The higher the dioptric power, the smaller the working distance becomes. Magnifying bifocals from Carl Zeiss Vision allow the wearer to perform work and read at close range by looking through the magnifying portion. The distance portion is used for orientation in the surrounding area. The correction of the wearer's ametropia is effective in both the base lens and the magnifying portion (except for Magnifying Bifocal R 20). Telescopic Spectacles, Teleloupe Spectacles Telescopic spectacles are used to recognize objects outside the zone of near vision. They are available in both Galilean and Kepler designs. Kepler systems allow higher magnifications; Galilean systems permit a more compact design. The attachment of a loupe turns telescopic spectacles into “teleloupe” spectacles for use in near vision. The benefit of teleloupe spectacles over magnifying spectacles is their markedly larger working distance in the near range. Optimized fields of view The size of the field of view is decisive for the practical usefulness of the visual aid. Large angular fields improve, for example, the flow of reading and reduce, or prevent, the head movements otherwise required for watching TV, for example. Telescopic spectacles from Carl Zeiss Vision therefore provide a maximum field of view tailored to meet the needs of the situation 20-690 e-III/2009 involved. B1 Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:54 Uhr Seite 4 Background Information Image quality The high image quality of the telescopic systems from Carl Zeiss Vision is essential for ensuring that the lowest possible magnification can be used. This markedly simplifies the handling of the system, as the size of the field of view, the depth of focus and the working distances remain comfortable for the wearer. System-inherent correction To ensure that the wearer's remaining visual acuity can be optimally utilized, any existing ametropia must be corrected. At Carl Zeiss Vision, this correction is performed by the individually matched combination of the optical components inside the telescope. The corneal vertex distance therefore remains constant. This has two benefits: 1. The components inside the telescope which correct ametropia are optimally matched to the system optics in the optical computation. 2. The corneal vertex distance is identical for emmetropes and ametropes, as no additional components are attached to the ocular on the side nearer to the eye. This is the only way of ensuring that the position of the exit pupil of the telescope and that of the entrance pupil of the eye coincide in every fitting. Unlike a corrective spectacle lens mounted on the ocular side, the system-inherent correction of ametropia influences neither image quality nor the size of the field of view. The Rx powers can be changed to 20-690 e-III/2009 meet the needs of each individual patient at any time. B2 Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:54 Uhr Seite 5 Background Information Modular design Generally, a telescope for an LVA patient must be focused at a finite distance, e.g. the customary distance between the wearer and a TV set. This is perfomed by Carl Zeiss Vision to your specifications. An additional clip-on lens is not required, therefore simplifying the use of the system. If the requirements change, the focusing system can be changed by Carl Zeiss Vision at any time. Usable for far and near Clip-on lenses turn telescopic spectacles into teleloupe spectacles. This makes the telescope systems very flexible for use in the distance, intermediate and near ranges. Light-coloured housing Telescope systems with light-coloured housings are less conspicuous for the patient during use and are therefore more pleasant to wear. The cosmetic benefit of the bright colour also helps to increase wearer acceptance. Bridge Telescopic spectacles must be very carefully centred. In binocular systems, the optical axes must be exactly aligned with each other to guarantee perfect fusion of monocular images. Carl Zeiss Vision therefore fits Kepler-type binocular telescope and teleloupe systems with fixed bridge connections. However, this is not done until the systems have been exactly adjusted and aligned on an optical bench. This permanent alignment 20-690 e-III/2009 also withstands external mechanical influences (shock or distortion of front of frame). B3 Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:54 Uhr Seite 6 Background Information Centration data The image quality and field of view of a telescope system can only be fully utilized if it has been correctly positioned relative to the eye. Two basic centration requirements must therefore be met: • the ”centre-of-rotation“ requirement • the correct position of the apertures (exit pupil of system/entrance pupil of wearer). Centre-of-rotation requirement The optical axis of the telescope system and the line of fixation of the eye must correspond in the principal visual direction. Carl Zeiss Vision mounts the telescope systems perpendicularly to the frame plane. The front of the system carrier must therefore be inclined perpendicularly to the principal visual direction (Figs. 1 and 2). Fig. 1 20-690 e-III/2009 Fig. 2 B4 Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:54 Uhr Seite 7 Background Information If the ideal inclination is not possible for anatomical or other reasons, the alternative is telescopic spectacles with inclinable optics (not possible with Telescopic Spectacles G 1.8 for mechanical reasons). In this case, the telescope system is fitted with an ocular ring which is rounded on the outside. This allows the system to be inclined as required in the drilled hole of the carrier lens and then locked in position with appropriate adhesives after the ideal inclination has been determined. The eye's line of fixation and the system axis must cor- Fig. 3 respond, irrespective of the forward tilt of the system carrier (Figs. 3 and 4). Correct position of the apertures The position of the exit pupil of the telescope must be congruent with the entrance pupil of the eye. The corneal vertex distance between the ocular and the eye must not be dependent on the fitting of the system carrier. The mounting height in the carrier lens is therefore adapted by Carl Zeiss Vision to the corneal vertex distance given in the order. This, along with the systeminherent correction, guarantees that the two important Fig. 4 apertures are congruent (Fig. 5). APSystem 20-690 e-III/2009 EPEye Fig. 5 APSystem = EPEye B5 Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:54 Uhr Seite 8 Background Information Order data Carl Zeiss Vision requires the following data for the production of telescopic or teleloupe spectacles: 1. Position of principal visual point (centration in accordance with the centre-of-rotation requirement) 1.1 PD for distance vision (also required for binocular systems used for near vision, as the nasal inset for near vision is calculated by Carl Zeiss Vision in each case) 1.2 Viewing height 2. Corneal vertex distance: corneal vertex – lens vertex on object side 3. Distance correction 4. Using distance for far (not required for Telescopic Spectacles K 4 vario or for binocular systems for near vision). Production Special tools and devices are required to complete, align and insert the telescope systems. This is why this work is performed at Carl Zeiss Vision in line with the data you have specified in your order. The telescope systems are inserted in plano carrier lenses made of 20-690 e-III/2009 CR 39, in which the appropriate hole has been drilled. B6 Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:54 Uhr Seite 9 Magnifying Bifocal S 25 A glass bifocal consisting of a base lens featuring the distance correction, with a magnifying segment cemented onto its back surface. The correction of the wearer’s ametropia is therefore also effective in the magnifying portion. The distance portion is used for orientation purposes, while the magnifying portion allows the ≤70 recognition of detail in the near range and the reading of standard print sizes. Due to the short working distances, only monocular use is generally possible. The magnifying portion is centred it can be nasally inset on request. The magnifying por- 2 under the major reference point for distance vision, but The magnifications 1.5x and 2x can also be used bino- 17 tion or the whole of the partner lens is occluded. cularly. The magnifying portions are then produced with convergence-relieving prisms and are nasally inset relative to the optical centre of the distance portion. 20-690 e-III/2009 25 Valid from January 1, 2009, Subject to change B7 Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:54 Uhr Seite 10 Magnifying Bifocal S 25 Technical data (for correction 0.0 D) 17 2 ≤70 25 Dioptric power of Working distance (D/4) magnifying portion measured from the eye 1.5 x 6D 175 mm 123 mm 2 x 8D 140 mm 104 mm 3 x 12 D 100 mm 74 mm 4 x 16 D 75 mm 53 mm Valid from January 1, 2009, Subject to change B8 Field of view 20-690 e-III/2009 Magnification Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:55 Uhr Seite 11 Magnifying Bifocal R 22 Magnifying Bifocal R 22 Lenti A plastic bifocal consisting of a base lens featuring the distance correction, with a moulded, round magnifying portion on its front surface. The correction of the wearer’s ametropia is therefore also effective in the magnifying portion. The distance portion is used for orientation to the surrounding field, while the magnifying portion allows the recognition of detail in 70 the near range and the reading of standard print sizes. Due to the short working distances, only monocular use is generally possible. The magnifying portion is centred under the major reference point for distance vision, but it can be nasally inset on request. The magnifying portion or the whole of the partner lens is occluded. A lenticular version is available for high plus powers for reasons of thickness and weight. 20-690 e-III/2009 22 Valid from January 1, 2009, Subject to change B9 Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:55 Uhr Seite 12 Magnifying Bifocal R 22 Magnifying Bifocal R 22 Lenti Technical data 70 22 Magnification Dioptric power of Working distance (D/4) magnifying portion measured from the eye Field of view 1.5 x 6D 175 mm 115 mm 2 x 8D 140 mm 95 mm 3 x 12 D 100 mm 64 mm 4 x 16 D 75 mm 48 mm Valid from January 1, 2009, Subject to change B10 20-690 e-III/2009 products will be discontinued, availability on request Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:55 Uhr Seite 13 Magnifying Bifocal R 20 A plastic bifocal consisting of a base lens featuring no corrective power, with a moulded, round magnifying portion on the centre of its front surface. The magnifying portion is produced with a 5x or 6x magnification vision and for reading standard print sizes. The distance portion can be used for orientation purposes. 70 Due to the short working distances, only monocular use is generally possible. The magnifying portion or the whole of the partner lens is occluded. 20-690 e-III/2009 20 Valid from January 1, 2009, Subject to change B11 Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:55 Uhr Seite 14 Magnifying Bifocal R 20 Technical data 70 20 Magnification Dioptric power of Working distance (D/4) magnifying portions measured from the eye Field of view 5x 20 D 65 mm 33 mm 6x 24 D 55 mm 27 mm Valid from January 1, 2009, Subject to change B12 20-690 e-III/2009 products will be discontinued, availability on request Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:55 Uhr Seite 15 Telescopic Spectacles G 1.8 Telescopic system with a Galilean design and magnification of 1.8x, convertible to a ”teleloupe“ system by the attachment of clip-on lenses on the object side for near vision. The Telescopic Spectacles G 1.8 are used monocularly or binocularly by persons with low vision in order to magnify objects in the distance to such an extent that they become visible again. The object-side attachment of clip-on lenses turns the telescopic system into a ”teleloupe“ system. The appropriate magnification makes it possible for the user to identify close-up objects and to read standard print sizes. Due to the parallel position of the telescope systems, only monocular use is possible in near vision. The other lens is covered with a frosted clip-on lens. For mounting reasons, the distance between the principal visual point and rim of the frame must not be less 20-690 e-III/2009 than 17 mm. Valid from January 1, 2009, Subject to change B13 Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:55 Uhr Seite 16 Telescopic Spectacles G 1.8 Technical data (for correction 0.0 D) Mdistance 1.8x Field of view 425 m/1000 m ^ = 24° Length Weight 26 mm approx. 30 g Clip-on lenses for intermediate distances Total Dioptric Working distance Free Field of Version magnification power (D) measured from working view Single- Multi- vision focal for near* the eye distance 1.84 +0.50 2 m 2 m 1.000 mm • 1.87 +1.00 1 m 1 m 500 mm • 1.94 +2.00 0.54 m 0.5 m 260 mm • 2,00 +3.00 0.37 m 0.33 m 170 mm • * referred to working distance Clip-on lenses for near vision Total Loupe Dioptric magnification magnification power (D) for near** Working distance measured from eye Free Field of Version working view Single- Multi- vision focal 2x 1.11x + 4.44 260 mm 215 mm distance 110 mm • • 3x 1.67x + 6.68 185 mm 140 mm 75 mm • • 4x 2.22x + 8.88 150 mm 105 mm 52 mm • • 5x 2.78x + 11.12 130 mm 85 mm 42 mm • • 6x 3.33x + 13.32 110 mm 65 mm 34 mm • • • 8x 4.44x + 17.76 95 mm 50 mm 26 mm • 10x 5.5 x + 22.00 90 mm 40 mm 20 mm • 12x 6.6 x + 26.40 85 mm 32 mm 15 mm • Valid from January 1, 2009, Subject to change B14 20-690 e-III/2009 ** referred to working distance = 250 mm Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:55 Uhr Seite 17 Telescopic Spectacles G 2.2 The Telescopic Spectacles G 2.2 feature one or two Galilean telescope systems either monocularly or binocularly. The magnification for distance vision is 2.2x. Together with the inconspicuous light grey colour of the housing, the large field of view provided by the coated optics ensures a high level of acceptance of the system by persons with low vision. Object-side clip-on lenses increase the range of possible applications, allowing the Telescopic Spectacles G 2.2 to be used for distance, intermediate and near vision. With the appropriate magnification, the recognition of near objects and the reading of standard print sizes are once again possible. Due to the parallel position of the telescope systems, only monocular use is possible for near vision. The other lens is covered with a frosted clip-on lens. For mounting reasons, the distance between the principal visual point and the rim of the frame must be less 20-690 e-III/2009 than 13 mm. Valid from January 1, 2009, Subject to change B15 Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:55 Uhr Seite 18 Telescopic Spectacles G 2.2 Technical data (for correction 0.0 D) Mdistance 2.2x Field of view 326 m/1000 m ^ = 18.5° Length Weight 25 mm approx. 18.5 g Clip-on lenses for intermediate distances Total magnification Dioptric Working distance Free working Field for near* power (D) measured from eye distance of view 2.27x + 0.50 2.067 m 2 m 625 mm 2.32x + 1.00 1.053 m 1 m 313 mm 2.44x + 2.00 0.555 m 0.52 m 159 mm 2.55x + 3.00 0.386 m 0.35 m 106 mm * referred to working distance Clip-on lenses for near vision Total magnification Loupe Dioptric Working distance Free working Field for near** magnification power (D) measured from eye distance of view 2.5x 1.14x + 4.56 246 mm 209 mm 65 mm 3 x 1.36x + 5.44 211 mm 175 mm 55 mm 4 x 1.82x + 7.28 167 mm 131 mm 41 mm 5 x 2.27x + 9.10 142 mm 105 mm 33 mm 6 x 2.73x + 10.92 125 mm 88 mm 28 mm 8 x 3.64x + 14.56 102 mm 66 mm 20 mm Valid from January 1, 2009, Subject to change B16 20-690 e-III/2009 ** referred to working distance = 250mm Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:55 Uhr Seite 19 Telescopic Spectacles K 4 The Telescopic Spectacles K 4 are fitted monocularly with a Kepler-type telescope system featuring a magnification of 4x for distance vision. They have been designed to help people with low vision to recognize objects in the distance. By the attachment of clip-on lenses on the object side, the telescope system can be converted to a ”teleloupe“ system for use at intermediate distances and/or for near vision. This allows the low vision wearer to recognize objects at close range and to read standard print sizes. A swivel mechanism of the clip-on lenses allows the wearer to switch rapidly from distance to near vision, and double clip-on lenses permit one or two lenses to be swung quickly into position. For mounting reasons, the distance between the principal visual point and the rim of the frame must not be 20-690 e-III/2009 less than 13 mm. Valid from January 1, 2009, Subject to change B17 Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:55 Uhr Seite 20 Telescopic Spectacles K 4 Technical data (for correction 0.0 D) Mdistance Field of view 226 m/1000 m ^ =13° 4x Length Weight approx. 52 mm approx. 33 g Swing-in clip-on lenses for intermediate distances Total magnification Dioptric Working distance Free working Field for near power (D) measured from eye distance of view ca. 4x + 0.34 3.066 m 3 m 685 mm ca. 4x + 0.50 2.066 m 2 m 463 mm ca. 4x + 1.00 1.066 m 1 m 232 mm ca. 4x + 2.00 0.566 m 0.5 m 118 mm Swing-in clip-on lenses for near vision Total magnification for near Loupe Dioptric Working distance Free working Field magnification power (D) measured from eye distance of view 4x 1 x + 4.0 313 mm 247 mm 58 mm 5x 1.25x + 5.0 264 mm 198 mm 47 mm 6x 1.5 x + 6.0 233 mm 167 mm 40 mm 8x 2 x + 8.0 187 mm 121 mm 29 mm 10x 2.5 x + 10.0 164 mm 98 mm 23 mm 12x 3 x + 12.0 149 mm 83 mm 20 mm 14x 3.5 x + 14.0 135 mm 69 mm 17 mm 16x 4 x + 16.0 126 mm 60 mm 15 mm 20x 5 x + 20.0 113 mm 47 mm 12 mm Double, swing-in clip-on lenses possible as: te distances and required loupe magnification for near vision Combinations featuring different loupe magnificaValid from January 1, 2009, Subject to change B18 tions for near vision 20-690 e-III/2009 Combinations featuring dioptric power for intermedia- Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:55 Uhr Seite 21 Telescopic Spectacles K 4 vario The Telescopic Spectacles K 4 vario are fitted monocularly with a Kepler-type telescope system with a magnification of 4x for distance vision. The system can be set from distance to near vision by appropriately turning the objective lens. The Telescopic Spectacles K 4 vario can be optionally fitted with a locking ring which serves as an objective stop for the largest object distance requested by the wearer. It can be attached in any position on the system housing using a pin screw. The teleloupe magnification for near vision totals a maximum of 8x (with correction of 0.0 D). This near magnification can be increased to 10x by the attachment of a clip-on lens. Persons with low vision can use the K 4 vario Telescopic Spectacles to recognize objects in the distance, at intermediate distances and in the close-up range. For mounting reasons, the distance between the principal visual point and the rim of the frame must not be less 20-690 e-III/2009 than 13 mm. Valid from January 1, 2009, Subject to change B19 Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:55 Uhr Seite 22 Telescopic Spectacles K 4 vario Technical data (for correction 0.0 D) Mdistance ↔ Mnear with clip-on lens Mnear Length Weight 4x ↔ 8x 10x 44.5 ↔ 64.5 mm approx. 46 g Working distance Free working Field measured from eye distance of view Magnification Telescope system K 4 vario Distance focusing 4x ∞ ∞ 226 m/1000 m Near focusing 8x 245 mm 170 mm 29 mm 380 mm Telescope system K 4 vario with clip-on lens approx. 4x 1.6 m 1.54 m 10x 200 mm 120 mm Valid from January 1, 2009, Subject to change B20 20 mm 20-690 e-III/2009 Distance focusing Near focusing Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:55 Uhr Seite 23 Telescopic Spectacles K 4 bino Binocular telescope system with a Kepler design and 4x magnification, convertible to monocular teleloupe system by the attachment of clip-on lenses for near vision. Telescopic Spectacles K 4 bino are used binocularly as a low vision aid to magnify distant objects and hence make them visible again for the wearer. By the attachment of clip-on lenses on the object side, the telescope system can be used monocularly as a “teleloupe” system. With the appropriate magnification, this makes it possible to recognize close-up objects again and to read standard print sizes. A swivel mechanism on the clip-on lenses allows the wearer to switch rapidly from distance to near vision. Double clip-on lenses make it possible to swing either one of the two lenses or both into position. The partner lens is provided with a frosted clip-on lens in each case. For mounting reasons, the distance between the principal visual point and the rim of the frame must not be 20-690 e-III/2009 less than 13 mm. Valid from January 1, 2009, Subject to change B21 Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:55 Uhr Seite 24 Telescopic Spectacles K 4 bino Technical data (for correction 0.0 D) Mdistance Field of view 226 m/1000 m ^ =13° 4x Length Weight approx. 52 mm approx. 64 g Swing-in clip-on lenses for intermediate distance Total magnification Dioptric Working distance Free working Field for near power (D) measured from eye distance of view ca. 4x + 0.34 3.066 m 3 m 685 mm ca. 4x + 0.50 2.066 m 2 m 463 mm ca. 4x + 1.00 1.066 m 1 m 232 mm ca. 4x + 2.00 0.566 m 0.5 m 118 mm Swing-in clip-on lenses for near vision Total magnification for near Loupe Dioptric Working distance magnification power (D) Free working Field measured from eye distance of view 4x 1 x + 4.0 313 mm 247 mm 58 mm 5x 1.25x + 5.0 264 mm 198 mm 47 mm 6x 1.5 x + 6.0 233 mm 167 mm 40 mm 8x 2 x + 8.0 187 mm 121 mm 29 mm 10x 2.5 x + 10.0 164 mm 98 mm 23 mm 12x 3 x + 12.0 149 mm 83 mm 20 mm 14x 3.5 x + 14.0 135 mm 69 mm 17 mm 16x 4 x + 16.0 126 mm 60 mm 15 mm 20x 5 x + 20.0 113 mm 47 mm 12 mm Double, swing-in clip-on lenses possible as: diate distances and required loupe magnification for near vision. Combinations featuring different loupe magnificaValid from January 1, 2009, Subject to change B22 tions for near vision 20-690 e-III/2009 Combinations featuring dioptric power for interme- Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:55 Uhr Seite 25 Teleloupe Spectacles K bino Binocular teleloupe system with 4 to 8x magnification for near vision. The Teleloupe Spectacles K bino are intended solely for binocular use in near vision to magnify reading texts to such an extent that they become visible again for persons with low vision. The minimum distance between the principal visual point and the rim of the frame is dependent on the PD, the vertex distance and the magnification. If the distance is less than 20 mm, please ask us whether this 20-690 e-III/2009 is possible. Valid from January 1, 2009, Subject to change B23 Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:55 Uhr Seite 26 Teleloupe Spectacles K bino Technical data (for correction 0.0 D) Length Weight between 50 and 59 mm, depending on ametropia and magnification approx. 64 g Magnification Working distance Free working Field measured from the eye distance of view 4x 295 mm depending 58 mm 5x 255 mm on 46 mm 6x 230 mm ametropia 38 mm 8x 200 mm B24 20-690 e-III/2009 Valid from January 1, 2009, Subject to change 29 mm Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:56 Uhr Seite 27 STMS™ System Carrier for Magnifying Visual Devices The outstanding features of the STMS™ System Carrier include its attractive design and modern material. The use of pure titanium guarantees not only a low weight, but also optimum skin compatibility, and therefore plays a decisive role in increasing wearing comfort. The single-component bridge element ensures that the front part of the frame is torsion-free and makes the system carrier dimensionally stable. The time-tested silicone saddle bridge guarantees a good, secure fit of the STMS™ System Carrier. However, it can also be fitted with individual, comfortable soft pads. The temples are available in a hook-type version or a straight version with an elastic rear head- 20-690 e-III/2009 band. Valid from January 1, 2009, Subject to change B25 Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:56 Uhr Seite 28 STMS™ System Carrier for Magnifying Visual Devices Availability Sizes Temple length Colour 47/16 47/18 50/16 50/18 53/16 53/18 56/18 Valid from January 1, 2009, Subject to change B26 130 mm • 135 mm • 135 mm • 53/20 140 mm • 56/20 140 mm • 50/20 20-690 e-III/2009 natural titanium Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:56 Uhr Seite 29 System Carrier LV basic for Magnifying Visual Devices The system carrier LV basic is specially adapted to the requirements resulting from the fitting of telescopic or teleloupe spectacles. The ideal distribution of pressure in the nose area is achieved by a soft bridge component. Along with the largely distortion-free front of the frame, special Marvel temples ensure a comfortable, secure fit. The mattfinished surface is palladium-plated and does not therefore release nickel. The wide range of sizes available allows exact adapta- 20-690 e-III/2009 tion to the special needs of a low vision aid. Valid from January 1, 2009, Subject to change B27 Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:56 Uhr Seite 30 System Carrier LV basic for Magnifying Visual Devices Availability Sizes Temple lenght 48/18 140 mm 50/18 145 mm 52/18 52/20 54/18 54/20 150 mm Valid from January 1, 2009, Subject to change B28 20-690 e-III/2009 56/20 Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:56 Uhr Seite 31 Monocular Hand Telescopes 3 x 12 B Mono ClassiC 4 x 12 B T* Mono DesignSelection 6 x 18 B T* Mono DesignSelection Small monocular telescopes can give people with a severe visual handicap greater mobility outdoors. Depending on the magnification required, three models from the extensive range of binoculars from Carl Zeiss are particularly suitable. Continuous focusing from the distance into the near range offers outstanding flexibility of use, e.g. for reading railway timetables and road signs or for windowshopping. Their compact dimensions make the telescopes easy to carry around and inconspicuous to use. Large fields of view and coated optics ensure that the user can make optimum use of his or her remaining 20-690 e-III/2009 visual acuity. Valid from January 1, 2009, Subject to change B29 Kapitel_B_20-690_ENG_2.qxd 15.04.2009 14:56 Uhr Seite 32 Monocular Hand Telescopes 3 x 12 B Mono ClassiC 4 x 12 B T* Mono DesignSelection 6 x 18 B T* Mono DesignSelection Technical data 3x12 B Mono 4x12 B T* Mono 6x18 B T* Mono ClassiC DesignSelection DesignSelection Distance magnification 3x 4x 6x Near magnification 6x 7x 13x 0.3 m 0.3 m Shortest focusing distance 0.2 m Focusing turning mechanism push-pull mechanism push-pull mechanism Field of view at 1000 m 200 m 184 m 120 m Weight 54 g 45 g 58 g Length with extended eyecup 65 mm 70 mm 94 mm Housing light metal, glass fibre reinforced glass fibre reinforced black plastic, grey plastic, grey Valid from January 1, 2009, Subject to change B30 20-690 e-III/2009 A practical neck cord is part of the delivery package Products Contents Magnifying Visual Devices from Carl Zeiss Vision for Professional Users C Background Information C1 Teleloupe Spectacles GTX C3 Head-worn Loupe KF Titanium C5 Head-worn Loupe KS C7 LED Illumination Saphiro2 C9 Teleloupe Spectacles G 2.5 TTL C11 Teleloupe Spectacles K bino TTL professional C13 EN_20_010_692III CZ-X/2010 Kapitel_C_20-692_ENG.qxd 15.04.2009 14:59 Uhr Seite 3 Background Information Optimized fields of view The size of the field of view is of crucial significance for the practical usefulness of a visual aid. The user must be able to view his field of action in its entirety. The teleloupe spectacles and head-worn loupes from Carl Zeiss Vision have therefore been designed to provide an optimally large field of view. Image quality Uncompromisingly high image quality is vital for making all details visible and for ensuring that the magnification must not be unnecessarily high. This makes it considerably easier to handle the visual aid, as the size of the field of view, the depth of focus and the working distances all remain within comfortable pro- 20-692 e-III/2009 portions. C1 Kapitel_C_20-692_ENG.qxd 15.04.2009 14:59 Uhr Seite 4 Background Information Correction of ametropia To provide the user of a magnifying visual aid with the best possible visual quality, it is important to correct his or her ametropia. In products from Carl Zeiss Vision, the wearer's prescription can either be integrated with a spectacle lens, or he can wear his own spectacles while using the aid. The KF and KS Head-worn Loupes are therefore provided with special high-eyepoint eyepieces for spectacle-wearers. The result: the field of view is the same size, regardless of whether the loupe is worn with or without prescription spectacles. Working distances Nowadays, major importance is attached to ergonomics. The working distances in the products offered by Carl Zeiss Vision therefore meet the various requirements resulting from the respective field of application and its individual parameters. Bridge in Head-worn Loupes KF and KS Binocular optical systems with a Kepler design from Carl Zeiss Vision all feature a fixed bridge. This ensures exact alignment of the optical axes of the two systems. This is the only way of ensuring problem-free binocular vision. LED illumination for head-worn loupes An additional coaxial, LED illumination system ideally illuminates the field of view – even in difficult light conditions, e.g. in dentistry. The light is always in exactThe coaxial illumination beam path allows cavities to be illuminated without shadow. C2 20-692 e-III/2009 ly the same location as that observed with the loupe. Kapitel_C_20-692_ENG.qxd 15.04.2009 14:59 Uhr Seite 5 Teleloupe Spectacles GTX The Teleloupe Spectacles GTX are head-worn loupes which must be fitted for each individual wearer by an eyecare professional. They are used for binocular, stereoscopic near vision in medicine and technology. The teleloupe systems with a Galilean design feature a 2x or 2.5x magnification and are each available with various working distances. The systems are contained in mounting rings which are cemented onto glass or plastic eyeglass lenses featuring any prescription. The carrier lenses can be inserted in any sturdy spectacle frame with good fitting properties. The small size of the systems allows good orientation to the surrounding field. The Teleloupe Spectacles GTX can be equipped with the Saphiro LED illumination. This allows an ideal, very easy combination of magnification and illumination. For cementing of the mounting rings, the following specifications are required: 1. single PD for distance. (The nasal inset for near is calculated on the basis of the different parameters listed from 2 to 4.2) 2. viewing height for near (centre of mounting ring) 3. vertex distance (corneal vertex – front lens vertex) 4. prescription of carrier lenses 4.1 distance correction 20-692 e-III/2009 4.2 near correction (specification of additon) Valid from January 1, 2009, Subject to change C3 Kapitel_C_20-692_ENG.qxd 15.04.2009 14:59 Uhr Seite 6 Teleloupe Spectacles GTX Technical data (with correction 0.0 D) Length Weight approx. 20 mm GTX 2: approx. 6 g per system with mounting ring GTX 2.5: approx. 7 g per system with mounting ring Magnification Working distance Free object Field measured from the eye distance of view 2x 500 mm 465 mm 84 mm 2x 450 mm 415 mm 76 mm 2x 400 mm 365 mm 68 mm 2x 350 mm 315 mm 60 mm 2x 300 mm 265 mm 52 mm 2.5x 450 mm 413 mm 72 mm 2.5x 400 mm 363 mm 64 mm 2.5x 350 mm 313 mm 57 mm Note: The object distance is reduced if the systems are cemented onto lenses with near correction or if the wearer accommodates. The mounting rings of the GTX Teleloupe Systems can be attached to glass or plastic carrier lenses. Mounting on plastic lenses from Carl Zeiss Vision is possible solely for the following lens types: • Clarlet 1.6 • Clarlet 1.6 Gold ET • Clarlet 1.5 Hard • Clarlet 1.5 Hard Gold ET • Clarlet 1.5 Duopal C 25 Hard Gold ET • Clarlet 1.5 Duopal C 28 Hard Gold ET The minimum thickness of plastic carrier lenses is 2.5 mm. Valid from January 1, 2009, Subject to change C4 20-692 e-III/2009 Any stable eyeglass frame with good fitting properties is suitable for use as a system carrier. Kapitel_C_20-692_ENG.qxd 15.04.2009 14:59 Uhr Seite 7 Head-worn Loupe KF Titanium The head-worn Loupe KF Titanium is used for binocular, stereoscopic near vision in medicine and technology. The teleloupe system features a Kepler design and is mounted on the system carrier KF Titanium, a frame with straight sides and an elastic headband. The optical system is available in various magnifications and working distances, and the system carrier in various frame sizes. High-eyepoint eyepieces for spectacle wearers allow the system to be worn in front of the frame, which can be glazed with lenses of any prescription. The vertical positioning and inclination of the teleloupe system K relative to the eyes are performed via the connecting component of the system carrier. The PD is set via the folding bridge of the system. If required, the teleloupe system K can be swung out of the field of view and then returned to the work position. The screw-on lens protection device – a standard component in the delivery package of the teleloupe system K – protects the optical systems from splashes 20-692 e-III/2009 and damage. Valid from January 1, 2009, Subject to change C5 Kapitel_C_20-692_ENG.qxd 15.04.2009 14:59 Uhr Seite 8 Head-worn Loupe KF Titanium Technical data (with correction 0.0 D) Length (optical systems) Weight 51.5 to 62 mm approx. 135 g Teleloupe system K Magnification 4 x Working distance Free object Field measured from the eye distance of view 500 mm 425 mm 93 mm 3.2x 500 mm 430 mm 115 mm 4 x 450 mm 375 mm 81 mm 3.3x 450 mm 380 mm 100 mm 4.3x 400 mm 325 mm 68 mm 3.5x 400 mm 330 mm 86 mm 4.5x 350 mm 275 mm 56 mm 3.6x 350 mm 280 mm 71 mm 5 x 300 mm 220 mm 44 mm 4 x 300 mm 230 mm 56 mm 4.5x 250 mm 180 mm 40 mm 5 x 235 mm 155 mm 36 mm 6 x 215 mm 135 mm 30 mm 8 x 190 mm 110 mm 23 mm Frame sizes Material Colour 56-18 large Pure titanium with solder- Natural titanium 53-20 standard free laser welded joints System carrier KF Titanium 50-18 small Mechanical lens protection device, contact guard (sterilizable), cold light illumination Valid from January 1, 2009, Subject to change C6 20-692 e-III/2009 Supplementary components Kapitel_C_20-692_ENG.qxd 15.04.2009 14:59 Uhr Seite 9 Head-worn Loupe KS The Head-worn Loupe KS is used for binocular, stereoscopic near vision in medicine and technology The teleloupe system features a Kepler design and is mounted on the system carrier S (support). The optical system is available in various magnifications and working distances. Thanks to its individual fitting possibilities, the support offers a high degree of wearing comfort. The high-eyepoint eyepieces for spectacle wearers allow the wearing of prescription eyewear behind the teleloupe system K. The vertical positioning and inclination of the system are performed via the connecting component of the support. The PD is set with the folding bridge of the system. If required, the teleloupe system K can be swung out of the field of view and then into the work position 20-692 e-III/2009 again. Valid from January 1, 2009, Subject to change C7 Kapitel_C_20-692_ENG.qxd 15.04.2009 14:59 Uhr Seite 10 Head-worn Loupe KS Technical data Length (optical systems) Weight (support and system) 51.5 to 62 mm approx. 330 g Magnification Working distance Free object Field measured from the eye distance of view 4 x 500 mm 425 mm 93 mm 3.2x 500 mm 430 mm 115 mm 4 x 450 mm 375 mm 81 mm 3.3x 450 mm 380 mm 100 mm 4.3x 400 mm 325 mm 68 mm 3.5x 400 mm 330 mm 86 mm 4.5x 350 mm 275 mm 56 mm 3.6x 350 mm 280 mm 71 mm 5 x 300 mm 220 mm 44 mm 4 x 300 mm 230 mm 56 mm 4.5x 250 mm 180 mm 40 mm 5 x 235 mm 155 mm 36 mm 6 x 215 mm 135 mm 30 mm 8 x 190 mm 110 mm 23 mm Supplementary components Valid from January 1, 2009, Subject to change C8 20-692 e-III/2009 Mechanical lens protection device, cold light illumination, contact guard (sterilizable) Kapitel_C_20-692_ENG.qxd 15.04.2009 14:59 Uhr Seite 11 LED Saphiro 2 Illumination Saphiro2 is a mobile, high-performance LED illumination system used by professional users, above all in combination with head-worn loupes. The fields of view are illuminated by Saphiro2 with uniform brightness and without shadows in a spectrum resembling daylight, allowing many visual tasks to be performed much more effectively and comfortably. The required brightness can be set continuously on a control device. An powerful rechargeable battery allows mobile, line-independent operation. The control device is worn on the body using a belt clip. The high degree of wearing comfort is ensured by low weight. The very small, lightweight illuminating head of Saphiro2 can be attached to all head-worn loupes from Carl Zeiss Vision using mechanical adapters. A special eyeglass clip allows Saphiro2 to be attached to practically any eyeglass frame. An ideal, very easy combination of magnification and illumination is achieved through the use of the 20-692 e-III/2009 Teleloupe Spectacles GTX with Saphiro2. Valid from June 1, 2011. Subject to change C9 Kapitel_C_20-692_ENG.qxd 15.04.2009 14:59 Uhr Seite 12 Saphiro LED Illumination Technical data Illumination: Rechargeable battery: Luminous intensity 35,000 lux at distance of 250 mm Color temperature 5,500 K (daylight characteristics) Size of illuminating head diameter 25 mm Weight of illuminating head 11 g Lithium Cobalt 2600 mAh, 3.7 V Operating time approx. 3-4 hours at full load, 5-6 hours in area marked in blue (irrespective of age and charging status of battery) Control device: Charger: Charging time approx. 3 hours Dimensions 100 x 30 x 30 mm Weight 70 g Dimensions 100 x 50 x 45 mm Weight (without battery) 82 g Operating voltage 100 V to 240 V AC 50/60 Hz Delivery package: 1 illumination unit with control device 1 BCV2 charger with world plug set SV2 battery pack 1 fastening set 1 patient protection filter 1 operating manual 1 case Additional rechargeable battery Valid from June 1, 2011. Subject to change C10 20-692 e-III/2009 Supplementary components: Teleloupe Spectacles G 2.5 TTL The G 2.5 TTL teleloupe spectacles are head-worn binocular loupes that are fitted individually by eyecare professionals. They are used for binocular, stereoscopic near vision by professional users, e.g. in medicine and technology. The Galilean-type teleloupe systems offer 2.5x magni fication and are available in three different working distances. The optical systems are mounted in the carrier lens (TTL = through the lens). The plastic carrier lenses can be with or without prescription. If required, the eyepieces of the optical systems can also contain prescription power. The small size of the optics provides the user with good orientation in his or her immediate surroundings. Teleloupe Spectacles G 2.5 TTL The proven STMS system carrier is used. It is fitted with straight temples and a headband for maximum wearing comfort. The G 2.5 TTL teleloupe spectacles can be combined with the Saphiro² LED illumination. This results in an ideal combination of magnification and illumination. Notes on the ordering and fitting of the Teleloupe Spectacles G 2.5 TTL The following data is required in the order for mounting of the optical systems in the carrier lenses: 1. Single PD for distance. (The nasal inset for near is calculated by Carl Zeiss Vision as a function of the centring data.) 2. Viewing height for distance 3. Vertex distance (corneal vertex to front lens vertex) Teleloupe Spectacles G 2.5 TTL with Saphiro² 4. Working distance of the optical systems 5. Prescription powers for the eyepieces of the optical systems if required 6. Prescription powers of the carrier lenses if required EN_20_010_692II CZ-IV/2010 7. Frame size of system carrier Valid from April 1, 2010. Subject to change C11 Teleloupe Spectacles G 2.5 TTL Technical data (for correction 0.0 D) Length Weight approx. 36 mm approx. 22 g (for each system) Magnification Working distance Free object Field of view measured from eye distance 2.5x 350 mm 315 mm 75 mm 2.5x 400 mm 365 mm 85 mm 2.5x 450 mm 415 mm 94 mm Note: The object distance is reduced if the user accommodates. System carrier STMS (with straight temples and elastic headband) Frame sizes Material Colour 50-18 small Pure titanium with solder-free Natural titanium 53-20 standard laser welded joints 56-18 large Versions of the Teleloupe Spectacles G 2.5 TTL Description Equipment Teleloupe Spectacles G 2.5 TTL basic Carrier lenses and eyepieces of optical systems without without ohne Korrektionswirkung prescription Teleloupe Spectacles G 2.5 TTL pro 1 Okulare Eyepiecesderofoptischen the opticalSysteme systemsmit with Korrektionswirkung prescription Eyepiece lens: Clarlet 1.6 GET / -10.00 +2.00 D, in stronger principal meridian; cyl 4.00 Okularlinse: Clarlet 1.6 GET / to-10,00 bistoric +2,00 dpt tor.i.st.H.; cyl 4,00 dptD Teleloupe Spectacles G 2.5 TTL pro 2 Trägergläser Carrier lensesund andOkulare eyepieces derofoptischen optical systems System mit Korrektionswirkung Eyepiece lens: Clarlet 1.6 GET / -10.00 +2.00 D, in stronger principal meridian; cyl 4.00 Okularlinse: Clarlet 1.6 GET / to-10,00 bistoric +2,00 dpt tor.i.st.H.; cyl 4,00 dptD Valid from April 1, 2010. Subject to change C12 EN_20_010_692II CZ-IV/2010 Carrier lenses: Clarlet 1.6 LT / -10.00 +2.00 D,bis toric+2,00 in stronger meridian; cyl 4.00 D Trägergläser: Clarlet 1.6 LT /to-10,00 dpt principal tor.i.st.H.; cyl 4,00 dpt Teleloupe Spectacles K bino TTL professional The teleloupe spectacles K bino TTL professional are head-mounted binocular teleloupe spectacles used for medical and technical applications for binocular, stereoscopic near vision. The teleloupe systems of Kepler design are available in different sizes. The optical systems are mounted on the carrier lenses (TTL = through the lens). If required, the eyepieces of the optical systems can be equipped with prescription lenses. As a system carrier either the proven system carrier STMS or a fashionable sports frame are used. For maximum comfort, the system carrier is equipped with sides and a strap. The teleloupe spectacles K bino TTL professional can be perfectly combined with the LED illumination Saphiro². Teleloupe spectacles K bino TTL professional with system carrier STMS Increased magnification in combination with shadowfree illumination of the work area are the basis for optimal results. Information on ordering and adjusting the teleloupe spectacles K bino TTL professional In order to mount the optical systems on the carrier lenses, the following information is required when ordering: 1. Single interpupillary distance for distance vision. (The nasal displacement for near vision is calculated as a function of the centration data of Carl Zeiss Vision) 2. Viewing height for straight-ahead distance vision 3. Vertex distance (corneal vertex to front lens vertex) 4. Magnification of the optical systems 5. possibly correction values for the eyepieces of the optical systems Teleloupe spectacles K bino TTL professional with sports frame and Saphiro² EN_20_010_692III CZ-X/2010 6. System carrier (type and size) Valid from 1 November 2010, subject to change C13 Teleloupe Spectacles K bino TTL professional Specifications (for correction 0.0 D) Installation length Weight Depending on defective vision and approx. 64 g magnification, between 50 – 59 mm Magnification Working distance Free working measured from eye distance Field of view 4.0x 450 mm Dependent on 80 mm 4.2x 400 mm defective vision 75 mm 4.4x 350 mm 68 mm 5.0x 450 mm 65 mm 5.6x 400 mm 61 mm 6.0x 350 mm 56 mm System carrier STMS Frame sizes Material/features Color 50-18 small Pure titanium with solderless Titanium natural 53-20 standard laser-welded joints 56-18 large sides Elastic strap Sports frame Frame sizes Material/features Color Small (S) Plastic frame Transparent Large (L) Strap Adapter for LED lighting Valid from 1 November 2010, subject to change C14 EN_20_010_692III CZ-X/2010 Saphiro² Kapitel_D_20-694_ENG.qxd 15.04.2009 15:00 Uhr Seite 1 Products Contents 20-694 e-III/2009 Fitting Devices from Carl Zeiss Vision D Background Information D1 Standard Fitting Set D5 Test Charts for Low Vision Patients D7 Near Vision Test Charts D9 Binocular Reading Charts D11 Fitting Set for Teleloupe Spectacles GTX D13 Fitting Set for Special Filter Lenses D15 Demo Kit for Concept bino ET D17 sold out Kapitel_D_20-694_ENG.qxd 15.04.2009 15:00 Uhr Seite 3 Background Information For the prescription and fitting of low vision devices, Carl Zeiss Vision offers various fitting devices which allow you to work systematically. Standard fitting set The standard fitting set contains materials for the prescription and fitting of those optical magnifying devices which cater for the requirements of the vast majority of persons with low vision. Test charts for low vision patients The test charts for low vision patients offer a selection of optotypes adapted to reduced testing distances of 1 m and 2 m. With the acuity grades of 0.025 – 1.00, they are ideal for testing low vision patients. Near vision test charts The near vision test charts provide rapid information on the reading ability of low vision patients. The size of the reading print which the patient can still just see provides a direct indication of what near magnification is required to allow the reading of standard print sizes again. Binocular reading charts The binocular reading charts consist of test groups of different sizes, each comprising three lines. The upper and lower lines are polarizing, the line in the middle is not. If appropriate analyzers are placed in front of the patient’s eyes, clear information is obtained on the patient’s reading ability. Fitting set for Teleloupes GTX This fitting set offers you the possibility of demonstrating Teleloupe Systems GTX, taking into account each individual patient’s ametropia and accommodation. For example, it is possible to measure the actual working 20-694 e-III/2009 distance resulting when the patient looks through the systems, a parameter which influences the exact centration of the systems. D1 Kapitel_D_20-694_ENG.qxd 15.04.2009 15:01 Uhr Seite 4 Background Information The fitting of optical low vision devices in short The following provides a summary of the systematic prescription and fitting procedures. 1. Lens prescription for reduced visual performance Objective refraction; Subjective refraction; Test charts for low vision patients for work at reduced testing distance; Use trial frame; Match grading of lenses to reduced visual performance 2. Determining required magnification Required magnificationdistance= acuitynominal / acuitycc The primary goal in providing patients with low vision devices is to enable them to read standard print sizes (e.g. in newspapers) again. An acuity of 0.4 (acuitynominal) is required for this purpose. Even smaller print (medication instruction leaflets, phone books, etc.) require a higher acuity (approx. 0.7). Required magnification for near vision => can be taken directly from the value given in the near vision test charts. 3. Testing and selecting low vision devices Distance: Hand telescope to maintain outdoor mobility; Telescopic spectacles for longer stationary use (e.g. watching TV) Near: Spectacles with the appropriate addition as full lens or magnifying bifocal; or telescopic spectacles with near focusing facility); Hand telescope with near focusing facility for spontaneous use D2 20-694 e-III/2009 Teleloupes (telescopic spectacles with clip-on lens Kapitel_D_20-694_ENG.qxd 15.04.2009 15:01 Uhr Seite 5 Background Information 4. Fitting Select and fit the system carrier; Centration in accordance with the center of rotation requirement; Determine viewing height for near (if required); Determine back (corneal) vertex distance 5. Ordering and production Report to ophthalmologist 6. Final fitting and dispensing Check fit and patient’s visual performance; Instruct the patient in the use of the device 7. Follow-up checks At regular intervals in order to ensure that the device is fulfilling its purpose. The right visual aid for every purpose The following table provides you with a summary of * Also available as teleloupes (telescopes focusable for where the various visual devices can be used: near vision) for hand use for short periods of reading, etc. ** Also available as teleloupes (telescopes with clip-on lenses) for hand use for short perception of text and numerals, etc. in the near range Degree of visual Type of visual Magnification/ impairment device Refracting power Type Use For spontaneous detection Visual devices for distance Acuity approx. Hand telescopes 3x to approx. 10x Kepler Telescopic 1.6x; 2.2x; Galilean For longer stationary use spectales 4x Kepler (e.g. watching TV, etc.) 6 - 10 D 1. Hand magnifier 1. Shorter periods of reading, etc. Acuity approx. 0.1 - 0.2 12 - 20 D 2. Stand magnifier 2. Longer periods of reading, etc. Acuity ≤ 0.1 24 - 40 D Hand magnifier Short perception of 2 to 3x Galilean Longer periods of reading, etc. Acuity approx. 0.12 - 0.08 4 to 6x* Galilean, Kepler Longer periods of reading, etc. Acuity approx. 0.05 - 0.03 8 to 12x* Galilean, Kepler Shorter periods of reading, etc. Kepler Shorter periods of reading, etc. 0.2 - 0.3 Acuity ≤ 0.3 of details in distance Visual devices for near 20-694 e-III/2009 Acuity approx. 0.2 - 0.4 Magnifiers text and numerals, etc. Acuity approx. 0.16 - 0.25 Acuity ≤ 0.02 Teleloupes 14 to 20x** D3 Kapitel_D_20-694_ENG.qxd 15.04.2009 15:01 Uhr Seite 6 Background Information Teleloupes GTX – Prescription and fitting procedures 1. Demonstration of the GTX systems Aids: Fitting set GTX, trial frame, test object with strong fusional stimulus (e.g. near vision tester, test types with cross) Goal: To demonstrate the visual impression obtained with GTX systems for the user To determine the actual working distance, taking ametropia and accommodation into account Procedure: Insert test holder with GTX systems in trial frame (careful with allocation of left, right and axis) Insert correction along with addition (where applicable) in the trial frame Set single image by turning the GTX systems in the mounting rings 2. Fitting the system carrier Select and fit spectacle frame Perform centration procedure in accordance with centre of rotation requirement (lens is centred when its optical axis runs through the eye’s optical centre of rotation). Determine viewing height for near. 3. Production For Teleloupes GTX, please use the order form (01742/G 2). Required parameters: Single PD for distance Viewing height for near Back vertex distance (corneal vertex to front lens vertex) Correction powers of the lenses (where applicable, Working distance determined from 1. D4 20-694 e-III/2009 also with near correction / addition) Kapitel_D_20-694_ENG.qxd 15.04.2009 15:01 Uhr Seite 7 Standard Fitting Set for Low Vision Devices The Standard Fitting Set for Low Vision Devices consists of material for determining and fitting of those low vision aids from Carl Zeiss Vision which cater for the vast majority of persons with a severe visual impairment. It contains test units for the G 1.8, G 2.2, K 4 and K 4 vario Telescopic Spectacles. The Test Charts for the Visually Impaired and the Near Vision Test Charts are located in the upper part of the compact case. The test units include telescope systems and clip-on lenses for determining and demonstrating distance and near magnifications. Clip-on lenses with +1.00 D are each used for dioptric compensation at a test distance of 1 m. The ZEISS Precision Trial Frame – in addition to other common trial frames – is especially recommended for use with the Standard Fitting Set for Low Vision Aids. The test systems are simply inserted in the slots intended for the trial lenses and, if necessary, fixed in position. Two system carriers in different sizes* can be used either directly for fitting the low vision aid or for determining the size of the system carrier required. There is ample room in the case for the Binocular Reading Tests and the accompanying polarisation-clip. Please see our price list for a detailed breakdown of the equipment required. 20-694 e-III/2009 * Depending on the equipment required. Valid from January 1, 2009, Subject to change D5 Kapitel_D_20-694_ENG.qxd 15.04.2009 15:01 Uhr Seite 9 Test Charts for Low Vision Patients Four successive sheets contain optotypes which are specially adapted to the requirements of low vision. Based on the test distances of 1 and 2 m, visual acuities between 0.025 and 1.0 can be tested and read off at once without any need for conversion. The low acuity range has been graduated to allow reasonably reliable information to also be obtained on visual performance in the case of low acuities. Additional optotypes with the acuity grades 0.32 to 0.64 are available for the common viewing distance of 3 m. A lateral thumb index allows the optotype size to be quickly selected. The Test Charts for the Visually Impaired are also very suitable for performing standard acuity testing in the patient’s home. The DIN A 4 test charts are made of wear-resistant plastic with laminated, dirt-repellent covers. They can be easily positioned or hung up in any location and are therefore ready for use at any time. They are just as easy to fold up 20-694 e-III/2009 again and can be stored without taking up much space. Valid from January 1, 2009, Subject to change D7 Kapitel_D_20-694_ENG.qxd 15.04.2009 15:01 Uhr Seite 11 Near Vision Test Charts Seven sheets of reading texts in various sizes are provided. Magnifications of 25x to 1x, referred to standard newspaper print at a viewing distance of 0.25 m, are assigned to each of these texts. The Near Vision Test Charts enable the determination of the patient's reading ability. The size of the reading print which the patient can still just see provides a direct indication of what near magnification is required to allow the reading of standard print sizes. The lateral thumb index allows fast selection of the required text groups. The DIN A 4 test charts are made of wear-resistant plastic with laminated, dirt-repellent covers. They can be easily positioned or hung up in any location and are therefore ready for use at any time. They are just as easy to fold up again and can be stored without 20-694 e-III/2009 taking up much space. Valid from January 1, 2009, Subject to change D9 Kapitel_D_20-694_ENG.qxd 15.04.2009 15:01 Uhr Seite 13 Binocular Reading Charts The Binocular Reading Charts consist of a transparent test film with successive, three-line text groupings of different sizes. The texts of the upper and lower lines are polarizing. If appropriate analyzers are placed in front of the patient’s eyes, he or she will be able to see the upper line with one eye and the bottom line with the other. The middle, non-polarizing line, on the other hand, can be seen with the two eyes. When in use, the test film is positioned in its plastic frame at a medium reading tilt in front of a white, curved and diffusely reflecting surface. Testing is performed in normal room lighting. The Binocular Reading Charts permit binocular comparison of coherent reading texts under binocular conditions. This aid can therefore be used to determine reading binocularity in general, and that of low vision patients in particular. The DIN A 4 test charts are made of wear-resistant plastic with laminated, dirt-repellent covers. They can be easily positioned or hung up in any location and are therefore ready for use at any time. They are just as easy to fold up again and can be stored without taking 20-694 e-III/2009 up much space. Valid from January 1, 2009, Subject to change D11 Kapitel_D_20-694_ENG.qxd 15.04.2009 15:01 Uhr Seite 15 Fitting Set for Teleloupe Spectacles GTX The GTX Fitting Set allows the binocular demonstration of the GTX 2 or GTX 2.5 systems, taking into account each patient’s accommodation and ametropia. This allows the determination of the actual working distance and prevents errors in the centration of the teleloupe systems. In the standard configuration, the fitting set contains two test holders for insertion in a trial frame, two GTX systems each for the working distances 350 mm and 450 mm, and a storage case. The GTX Teleloupe Systems are available with 2x or 2.5x magnification. 20-694 e-III/2009 The photo does not show the standard configuration. Valid from January 1, 2009, Subject to change D13 Kapitel_D_20-694_ENG.qxd 15.04.2009 15:01 Uhr Seite 17 Fitting Set for Special Filter Lenses The fitting set for special filter lenses enables the demonstration of various filter colors using filter clips which can be used with almost all prescription frames. The patient is able to easily compare the various filter colors and determine which color fits best. The standard filter set contains four filter clips (F 540, F 560, F 60 and F 80), as well as a case. The binocular lorgnette (glazed with special filter 20-694 e-III/2009 lenses) can also be stored in the case. Binocular lorgnette According to the Medical Device Directive, special filter lenses are not suitable for driving as per DIN EN ISO 14889. Valid from January 1, 2009, Subject to change D15 Kapitel_E_20-693_ENG.qxd 15.04.2009 15:02 Uhr Seite 1 Products Contents 20-693 e-III/2009 Special Filter Lenses from Carl Zeiss Vision E Background Information E1 Clarlet F 60, F 80, F 90, F 540, F 560, F 580 E3 Clarlet F 451, F 452 E6 Filter Clip E7 Kapitel_E_20-693_ENG.qxd 15.04.2009 15:02 Uhr Seite 3 Background Information Special filter lenses for medical applications completely absorb part of the visible spectrum. Receptors in the eye which are sensitive to this region are deliberately “underexposed”. The contrast between those receptors subjected to maximum, and those subjected to minimum exposure is increased. Studies have shown that, in certain diseases of the retina, special filter lenses often enhance contrast and reduce the time required to adapt to different light conditions. There are no uniform, objective criteria for the prescription of special filter lenses. Instead, the most suitable lens is usually found by trying out the various options available, especially for such degenerative eye disorders as retinitis pigmentosa or diabetic retinopathy. Carl Zeiss Vision offers special lorgnettes and filter clips for this purpose. Patients subjectively compare and assess the visual comfort provided by the different types of filter lens available. Many sufferers need different filter lenses for different Binocular lorgnette light conditions and therefore often have several pairs of spectacles. Clarlet and Carat are registered trademarks of 20-693 e-III/2009 Carl Zeiss Vision. Valid from January 1, 2009, Subject to change E1 Kapitel_E_20-693_ENG.qxd 15.04.2009 15:02 Uhr Seite 5 Clarlet F 60, F 80, F 90 Clarlet F 540, F 560, F 580 The special filter lenses Clarlet F 60, F 80 and F 90 and Clarlet F 540, F 560 and F 580 for medical applications were developed and tested in collaboration with international institutes and ophthalmologists. Transmission has been optimized so that part of the visible short- The right recommendation for retinitis pigmentosa Retinitis pigmentosa, or more correctly retinopathia pigmentosa, is a hereditary, progressive disease of the eye. Due to a malfunction in the metabolism of the 100 90 80 70 60 50 40 30 20 10 0 Transmission (%) wave spectrum is absorbed. Wavelength (nm) 350 400 450 500 550 600 650 700 750 F 60 F 80 F 90 retina, the sensory cells (rods and cones) are not sufficiently supplied with blood and hence gradually Transmission curves for Clarlet F 60, F 80 and F 90 degenerate. The many forms which this disease takes make it impossible to give an exact description of the symptoms. Initially, the function of the rods is impaired. Increasing difficulty is experienced with twilight and night vision, extending to total night blindness. There is a gradual contraction of the visual field from the periphery inwards until the patient is left with “gun barrel” vision. Orientation then becomes very problematic. A further symptom of RP is reduced cone function. Reduced visual acuity, a deterioration in visual contrast and colour, and a high degree of sensitivity to glare are the result. Special filter lenses often provide enhanced wearing comfort. 20-693 e-III/2009 Clarlet F 60, F 80, F 90 Valid from January 1, 2009, Subject to change E3 Kapitel_E_20-693_ENG.qxd 15.04.2009 15:02 Uhr Seite 6 Clarlet F 60, F 80, F 90 Clarlet F 540, F 560, F 580 Increased visual comfort for colour blindness colour blindness in which the cones totally fail to function. The patient affected has no sense of colour whatsoever and can only distinguish between various degrees of brightness. Nystagmus (trembling of the eyeball) is often also present. Sensitivity to glare is very high and visual acuity is usually severely reduced. Transmission (%) 100 90 80 70 60 50 40 30 20 10 0 Achromatopsia or rod monochromatism is a type of Wavelength (nm) 350 400 450 500 550 600 650 700 750 F 540 The glare effect results from oversensitivity of the rods. F 560 F 580 The special filter lenses absorb the wavelength range to which the rods are oversensitive and therefore Transmission curves for Clarlet F 540, F 560 and F 580 reduce glare. Increased visual comfort for diabetic retinopathy The damage caused by diabetes is usually focused on the middle and inner layers of the retina which are responsible for processing image contrast. In a retina damaged by diabetes the sensitivity to contrast is impaired. In bright surroundings, relatively dark details generate the maximum signal possible in the brain. Brighter details do not generate a sufficiently strong signal and cannot therefore be distinguished from darker zones. Particularly patients in the advanced stages of diabetic retinopathy are easily dazzled by glare and find light/dark adaptation difficult. Cut-off filters such as F 540, F 560 and F 580 absorb the part of the spectrum to which the cones are sensitive and hence shield them. The special filter lenses therefore reduce glare and facilitate adaptation Clarlet F 540, F 560, F 580 Valid from January 1, 2009, Subject to change E4 20-693 e-III/2009 to changing light. Kapitel_E_20-693_ENG.qxd 15.04.2009 15:02 Uhr Seite 7 Clarlet F 60, F 80, F 90 Clarlet F 540, F 560, F 580 Areas of use For medical application in retinitis pigmentosa or retinopathia pigmentosa achromatopsia or rod monchromatism diabetic retinopathy in advanced stages Availability Every Clarlet lens with the refractive index 1.5 is also available as Clarlet F 60, F 80, F 90 and Clarlet F 540, F 560, F 580 All coatings except for hard, Carat and Carat Filter are possible Special filter lenses at a glance Clarlet F 60: reddish brown, 60% absorption at 600 nm Clarlet F 80: brown, 80% absorption at 600 nm Clarlet F 90: dark brown, 90% absorption at 600 nm Special filter lenses from Carl Zeiss are tinted in a special dip dye bath Clarlet F 540: bright orange, 50% absorption at 540 nm (cut-off filter) Clarlet F 560: orange, 50% absorption at 560 nm (cut-off filter) Clarlet F 580: red, 50% absorption at 580 nm (cut-off filter) Lens type Category as per Solar UV absorption DIN EN ISO 8980-3 Suitability for traffic and driving at night and in twilight as per DIN EN ISO 14889 20-693 e-III/2009 Clarlet F 60 Category 2 100% solar UV-B absorption (57 - 82%) 100% solar UV-A absorption Clarlet F 80 Category 3 100% solar UV-B absorption Clarlet F 90 (82 - 92%) 100% solar UV-A absorption Clarlet F 540 Category 1 100% solar UV-B absorption Clarlet F 560 (20 - 57%) 100% solar UV-A absorption Clarlet F 580 Category 2 100% solar UV-B absorption (57 - 82%) 100% solar UV-A absorption Not suitable for use in traffic! Not suitable for use in traffic! Not suitable for use in traffic! Not suitable for use in traffic! Valid from January 1, 2009, Subject to change E5 Kapitel_E_20-693_ENG.qxd 15.04.2009 15:02 Uhr Seite 8 Clarlet F 451, F 452 The blue special filter lenses Clarlet F 451 and F 452 absorb selectively. They have been specially developed for patients with blue cone monochromatism. They of visible radiation from 550 nm to 650 nm. Marked improvement in acuity for patients with blue cone monochromatism Transmission (%) 100 90 80 70 60 50 40 30 20 10 0 display a transmission of less than 20% in the range Wavelength (nm) 350 400 450 500 550 600 650 700 750 F 451 Blue cone monochromatism is a very rare eye disease F 452 in which only the function of the rods and the blue cones remains. Transmission curves for Clarlet F 451 and F 452 The blue filter lens Clarlet F 451 and the dark blue filter lens Clarlet F 452 can be used to achieve a marked increase in contrast sensitivity, acuity and twilight acuity. Area of use Blue cone monochromatism Availability Every Clarlet lens with the refractive index 1.5 is also available as the special filter lenses Clarlet F 451 and F 452 All coatings except for hard, Carat and Carat Filter are possible Lens type Category as per Solar UV absorption DIN EN ISO 8980-3 Suitability for traffic and driving at night and in twilight Category 2 100% solar UV-B absorption Clarlet F 452 (57 - 82%) >95% solar UV-A absorption Valid from January 1, 2009, Subject to change E6 Not suitable for use in traffic! 20-693 e-III/2009 as per DIN EN ISO 14889 Clarlet F 451 Kapitel_E_20-693_ENG.qxd 15.04.2009 15:02 Uhr Seite 9 Filter Clip SCF 60, SCF 80, SCF 90 SCF 540, SCF 560, SCF 580 SCF 451, SCF 452 Filter clips are glazed with Clarlet® special filter lenses made of CR 39 and are not prescription lenses. They can be used with almost all prescription frames. Patients are able to choose the optimum filter color by testing and rating various filter lenses. The fitting set for special filter lenses is ideal for this. You can find more information on fitting sets in chapter D, page D15. 20-693 e-III/2009 Each filter clip comes with its own case. According to the Medical Device Directive, special filter lenses are not suitable for driving as per DIN EN ISO 14889. Valid from January 1, 2009, Subject to change E7 Kapitel_F_20-693_ENG.qxd 15.04.2009 14:22 Uhr Seite 1 Tips, Info and Ordering Magnifying visual devices are not self-explanatory. This is why we are pleased to provide you with assistance – verbally or in writing – on these high-quality ophthalmic products at any time: Our seminars and training courses will provide you with the knowledge you need for the fitting of low vision devices. Premium quality is guaranteed at all times for low vision devices from Carl Zeiss – right from their development to customer care. This is all verified by our certification to ISO 9000. If you have any questions on our products or on the ordering procedure, please contact the following addresses where you can also request the order forms (cat. no. 01742 and 01742/GTX). Carl Zeiss Vision GmbH Turnstrasse 27 P. O. Box 18 65 D-73430 Aalen D-73408 Aalen Germany Germany Phone: +49 (0) 73 61/59 10 Fax: +49 (0) 73 61/59 14 88 Carl Zeiss Vision in the Intranet www.vision.zeiss.de [email protected] Zeiss Partner Network for customers with a password: 20-693 e-III/2009 www.zeiss.de/partner F1