Transcript Welcome to the Laguna Laser Center

Outcomes Update for an
Aspheric Accommodating IOL
John A. Hovanesian, M.D.
Clinical Instructor, UCLA Jules Stein Eye Institute
Harvard Eye Associates, Laguna Hills, California
Consultant to:
Allergan (1, 3)
Abbott Medical Optics (1)
Baxter (1)
Bausch & Lomb (1, 2)
Diopter, Inc. (1)
Essex Woodlands (1)
Glaukos (1, 2)
IOP (1, 2)
Inspire (1)
Ista (1, 2, 3)
Ivantis (1)
1 = consulting fees, 2 = research support, 3 = equity interest
Ocular Therapeutix (1, 2, 3)
Kurtis Eyewear, (1)
ReVision Optics (1)
Sirion Therapeutics (1)
Vistakon (1)
Vista Research (1)
Crystalens: How it Works
Primary Force: Ciliary Muscle
• Accommodation causes the ciliary muscles to
contract, displacing the vitreous mass &
forcing the lens forward
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Crystalens: How it Works
Secondary Force: Optic Arching
• Capsular contraction slightly distorts the optic
as it is forced anteriorly, changing the radius
of the lens
Distance
Near
Δ 2.50 D
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Crystalens AO
Accommodating IOL
• Aberration-free optic design
• Maintains depth of focus
of spherical IOL
• Improves contrast
sensitivity over
spherical IOLs
• Aspheric surface on anterior
and posterior surfaces
• Less sensitive to decentration
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Effect of SA on Image Quality
• Spherical aberration degrades retinal image quality.
• Reduces contrast sensitivity and low-contrast visual
acuity
• High-contrast visual acuity usually not affected
• Creates halos
SA = +0.45 mm
SA = 0
20/40 Letter E
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Crystalens AO Outcomes
Data Collection
• Uncorrected distance (UCDVA) and near
(UCNVA) visual acuities entered into
SurgiVision® DataLink IOL Registry
• Data from:
• Our site: all eyes with data entered
• Global data: all Crystalens AO eyes entered
into database
• Data from 1 and 3 month postoperative visits
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Mean Postoperative
Refraction
Our Results
Global Results*
Postop
Visit
N
Mean MRSE (D) ± SD
N
Mean MRSE (D) ± SD
1 Month
39
-0.36 ± 0.47
2779
-0.27 ± 0.59
3 Months
17
-0.32 ± 0.47
1182
-0.29 ± 0.61
*Global Results from SurgiVision® DataLink IOL Registry
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Our Results: Monocular
UCDVA
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Our Results: Monocular
UCNVA
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One Month Results Summary
Our Results
Global Results*
Postop
Visit
N
%20/25
or better
%20/40 or
better
N
%20/25 or
better
%20/40 or
better
UCDVA
44
57%
91%
3228
52%
85%
UCIVA
NA
NA
NA
2866
74%
93%
UCNVA
32
69%
97%
2825
39%
82%
*Global Results from SurgiVision® DataLink IOL Registry
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Conclusion
• Crystalens AO provides acceptable distance
vision and functional near vision.
• Predictable outcomes: Mean MRSE within
0.5 D of plano in both groups
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Thank you!
John A. Hovanesian, M.D.
Laguna Beach, California
[email protected]
Hovanesian, 2008