“I`m unique. And so is my aberration

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“I’m unique. And so is my
aberration - free IOL”
SofPort AO and Akreos AO – the world’s first aberration-free IOLs
TM
TM
- No additional aberrations introduced into patients’ eyes
- Uniform centre to edge power for more repeatable outcomes – independent of patient profile
- Allows for enhanced depth of field and visual comfort
From Bausch & Lomb – pioneers in optics for over 150 years
Perfecting Vision and Enhancing Life
Germany
Tel: +49 89 945 70 119
Fax: +49 89 945 70 117
Belgium-Luxembourg
Tel: +32 3 280 82 40
Fax: +32 3 280 82 59
Nordic Countries
Tel: +46 8 616 95 85
Fax: +46 8 658 25 41
France
Tel: +33 4 67 12 30 30
Fax: +33 4 67 12 30 31
Netherlands
Tel: +31 20 6554555
Fax: +31 20 6537873
DistOps, Greece
& Turkey
Tel: +33 4 37 48 8383
Fax: +33 4 37 48 8384
United Kingdom
Tel: +44 20 8781 0000
Fax: +44 20 8781 0001
Spain
Tel: +34 93 298 8373
Fax: +34 93 431 4682
South Africa
Tel: +27 11 259 2600
Fax: +27 11 259 2650
Italy
Tel: +39 039 207 3744
Fax: +39 039 201 0081
Portugal
Tel: +351 214 241 510
Fax: +351 214 241 519
Asia-Pacific
Tel: +852 2213 3333
Fax: +852 2567 8170
For information or Customer Service please contact your local representative or distributor. © Copyright 2005 Bausch & Lomb Incorporated. All rights reserved.
Akreos and SofPort are trademarks of Bausch & Lomb Incorporated. Bausch & Lomb European Office, Hamilton House, Regent Park, 299 Kingston Road, Leatherhead, Surrey KT22 7LU United Kingdom.
The world’s first aberration-free IOLs
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Unique Aberration-Free Optics: better vision for more patients
The aberrations present in the eye differ from person to person. That’s why Bausch & Lomb has
created the world’s first aspheric IOLs with aberration neutrality and uniform power, offering
unique benefits independent of the patient’s profile.
Aberration-free
Advanced Optics IOLs have aspheric anterior
and posterior surfaces. Their unique shape
Uniform power from centre to edge
Natural functionality
Two new Advanced Optics IOLs
results in no aberration being introduced
Advanced Optics IOLs are designed with no variation
Advanced Optics IOLs leave the eye with its
Advanced Optics IOLs are available in both Acrylic and
into the patient’s eye.
in power from the centre right to the periphery.
natural positive aberration.
Silicone materials, with innovative single-use injectors.
Depth of focus in intermediate vision
SofPortTM Advanced Optics
LI61AO silicone lens
21 dpt
21 dpt
= dp
21 dpt
AkreosTM Advanced Optics
Adapt AO acrylic lens
Key
Independent of the corneal shape, they are
Independent of the eye’s optical alignment,
suitable for all patients*, including those who
they can provide predictable outcomes for all patients,
have previously received LASIK treatment, who
including those with undetected zonular
have keratoconus or any other pre-existing
weaknesses or decentred pupils.
•
Corneal Peripheral rays
•
Corneal Medium rays
•
Corneal Central rays
This allows for enhanced depth of field.1,2
corneal aberration.
1. Bausch & Lomb, Data on file. 2. NIO Y-K., Jansonius N.M., Geraghty E., et al Effect of intraocular lens implantation on visual acuity, contrast sensitivity and depth of focus. J. Cataract Refract. Surg., 2003; 29 : 2073-2081
* Please consult product labelling for risks and contraindications
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Aberration-Free Lens - vision for all patients
Standard Spherical IOL
Aspheric Aberration-Free IOL
Positive Spherical Aberration
• Biconvex spherical surfaces create positive spherical
Aberration-Free
Decreased Contrast
Sensitivity
• Bausch & Lomb’s Advanced Optics IOLs have
aspheric anterior and posterior surfaces that
create no spherical aberration
aberration (SA): peripheral rays come to a shorter
focus than central rays
• They are neutral to the cornea so are suitable
• Positive SA results in a loss of contrast sensitivity:
for all patients regardless of corneal shape*
pseudophakic patients with standard IOLs have more
spherical aberration and less contrast sensitivity than
phakic patients of the same age3
Positive
spherical
aberration
• Performance is unaffected by optical
misalignment or pupil decentration
Convolved E & image simulating positive spherical aberration
• Predictable, repeatable refractive outcomes
means better vision for more patients
Aspheric Aberrated IOL
Negative Spherical Aberration
• Modified prolate anterior surface creates negative SA
Variable Visual
Performance
For Optimized
Visual Performance
designed to offset the positive SA of a typical cornea4
Negative
spherical
aberration
• All corneas are different, so will not suit all patients
• Ocular misalignment may cause HOA such as coma,
resulting in significant visual impairment5,6,7
Convolved E & image simulating coma higher order aberration
3. Aggarwal A, Khurana A.K., Nada M. Contrast Sensitivity Function in pseudophakics and phakics. Acta Ophthalmol Scand, 1999, 77 : 441-44 4. Holladay J.T., Piers P.A., Koranyi G., et al A new intraocular lens design to reduce spherical
aberration of pseudophakic eyes. J. of Refractive Surg., 2002; 18 : 683-691 5. Lopez-Gil N, Howland H.C., Howland B. at al Generation of third-order spherical and coma aberrations by use of radially symmetrical fourth-order lenses
J. Opt. Soc. Am..A., 1998 ; 15 : 2563 - 2571 6. Atchison D.A. Third-order aberrations of pseudophakic. Ophthal. Physiol. Opt., 1989 ; 9 : 205-211 7. Barbero S., Marcos S., Jimenez-Alfaro I. Optical aberrations of intraocular lenses
measured in vivo and in vitro. J. Opt. Soc. Am..A., 2003 ; 20 : 1841-1851
Convolved E & image simulating no higher order aberration
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Uniform Power - predictable for all patients
Constant power from centre to
edge is important for good vision8
introduce different amounts of spherical aberration
into the eye
- It does not worsen visual defects resulting from imperfect
shape and alignment of the eye
• The optics of the phakic eye are not perfectly aligned
- Particularly important when the IOL is not perfectly positioned
- The pupil is not centred on the optical axis
- Even a lens perfectly centred in the capsular bag is likely to
be misaligned with the visual axis
- The visual axis does not pass through the centre of
the pupil or lens
- Without uniform power from centre to edge any misalignment
may result in visual impairment
- Most important in low light situations
OPTICAL AXIS
(Cornea to Lens)
IRIS
0.8
0.8
0.7
0.7
0.6
0.5
0.4
0.3
0.6
0.5
0.4
0.3
0.2
0.2
0.1
0.1
0.0
Modulation Transfer Function (MTF) plots computed
from the ray trace simulations of the theoretical
eye model demonstrate the ability of lenses to
produce a quality image with a high contrast.
0
10
20
30
40
50
60
0.0
0
Spatial Frequency (cpd)
10
20
30
40
50
60
Spatial Frequency (cpd)
Standard spherical IOL
Aberrated aspheric IOL
VISUAL AXIS
(Object to Fovea)
21 dpt
The difference uniform power
can make
21 dpt
Photographic images simulate vision in mesopic
conditions with a 4 mm pupil and a lens 0.5 mm
off visual axis. The photo on the right depicts
the loss of vision quality that can occur with
spherical aberration.
= dp
LENS
1.0
0.9
B&L aberration-free aspheric IOL
........................................................................................................................ FOVEA
CORNEA
1.0
0.9
Modules of the MTF
• Not all corneas are the same shape and, therefore,
Enhanced vision in a wide
range of light conditions
4 mm aperture, lens 0.5 mm off visual axis
3 mm aperture, lens 0.5 mm off visual axis
Modules of the MTF
The Natural Phakic Eye
RETINA
All axes in the eye are not perfectly aligned and no two eyes are the
same shape so you need IOLs that work with imperfect conditions.
8. Altmann G, Edwards K, The Aberration-Free IOL: Advanced Optical Performance Independent of Patient Profile, October 2004;
21 dpt
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Natural Functionality
Enhanced depth of field
Depth of focus in intermediate vision
• The phakic eye has a natural degree of positive spherical aberration (+SA)
• Aberration-free Advanced Optics IOLs leave the pseudophakic eye with
Enhanced visual comfort
The retina reflects light forward.
its natural +SA
IOLs create glare by allowing light reflections from
the anterior surface back towards the retina.9
• This allows for greater depth of field
• Theoretically, a pseudophakic eye with 0.27µm of +SA will have about
2
0.5d of additional pseudo-accommodation compared to a pseudophakic
eye with no +SA
Simulation of vision affected by glare
• In general, more +SA means greater depth of field, however too much
+SA reduces overall quality of vision
Thanks to improved Anti-Glare Technology from
Bausch & Lomb, reflected glare is reduced in two ways:
• The lens material has a moderate refractive index
• The anterior surface has a steeper curvature
9
9,10
Simulation of vision benefiting from Anti-Glare Technology
This technology has been demonstrated in the highly
successful Akreos design.
• 90% of patients report no light related discomfort
11
Key
•
Corneal Peripheral rays
•
Corneal Medium rays
•
Corneal Central rays
Simulation of vision with depth of
field limited (no+SA)
Simulation of vision with enhanced
depth of field (with+SA)
In intermediate vision more distant objects are seen through central corneal rays whereas closer
objects are seen through peripheral corneal rays.
9. Erie JC, Bandhauer MH, McLaren JW. Analysis of postoperative glare and intraocular lens design. J Cataract Refract Surg 2001; 27: 614-621.
10. Erie JC, Bandhauer MH. Intraocular lens surfaces and their relationship to post-operative glare. JCRS 2003;29(2):336-41. 11. Rozot P. Light. Related Eye Problems with Akreos™. Lenses and their Incidence on Patient Satisfaction. ASCRS 2004.
12. Tester R. Pace NL, Samore M, Olson RJ, Dysphotopsia in phakic & pseudophakic patients: incidence and relation to intraocular lens type. J Cataract Refract Surg. 2000 Jan; 26(6): 810-6.
compared with only 67% in conventional IOLs12
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New Advanced Optics Aspheric Lenses from Bausch & Lomb
Two different
designs - many
common advances
• Aberration-free with biconvex aspheric
anterior and posterior surfaces
• Uniform power from centre to edge
• Square Edge Technology with full
360° posterior square edge barrier
• Anti-Glare Technology with moderate
refractive index and steeper anterior
aspheric surface
• Single-use injectors
Model: LI61 AO
MATERIAL
Optic: Silicone, class 1, UV absorber
Refractive index: 1.43
Haptics: blue extruded PMMA
Model: Adapt A0
MATERIAL
STEEPER ANTERIOR
ASPHERIC SURFACE
26% acrylic material, UV Blocker
Refractive index 1.458 (hydrated)
OPTIC
OPTIC
Biconvex aspheric anterior and
posterior, Optic body: 6mm
Biconvex aspheric anterior and
posterior, Optic body: 6mm
HAPTICS
HAPTICS
ORIENTATION TABS
Modified-C, 5º loop angle
One-piece, 0º angulation
OVERALL DIAMETER
OVERALL DIAMETER
11.0mm from 10.0 to 15.0 dpt
13mm
10.7mm from 15.5 to 22.0 dpt
DIOPTRE RANGE
10.5mm from 22.5 to 30.0 dpt
0.0 through 30.0 in 0.5 dpt
DIOPTRE RANGE
STEEPER ANTERIOR
ASPHERIC SURFACE
A-CONSTANT**
10.0 through 30.0 in 0.5 dpt
118,0
A-CONSTANT**
ACD**
5,0mm
360º ANTERIOR/POSTERIOR
SQUARE EDGE
SURGEON FACTOR**
1,22
5º HAPTIC ANGLE
ANTERIOR/POSTERIOR SQUARE
EDGE WITH 360º POSTERIOR BARRIER
INCLUDING HAPTIC/OPTIC JUNCTION
118,0
ACD**
4,96mm
SURGEON FACTOR**
ORDER CODE
1,22
LI61AOR
ORDER CODE
AkreosAO
** A-Constant, ACD and Surgeon Factor are estimates only. It is recommended that each surgeon develop his or her own values.