Copenhagen 2016 Registration Programme Exhibitor Information Virtual Exhibition Satellite Meetings Glaucoma Day 2016 Hotel Star Alliance
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10 - 14 Sept. 2016, Bella Center, Copenhagen, Denmark

This Meeting has been awarded 27 CME credits

 

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Difference in chromatic aberration of intraocular lenses

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Session Details

Session Title: Pseudophakic IOLs: Enlarged-Depth-of-Focus I

Session Date/Time: Monday 12/09/2016 | 14:00-15:30

Paper Time: 15:10

Venue: Hall C4

First Author: : H.Weeber THE NETHERLANDS

Co Author(s): :    D. Chang   M. van der Mooren   J. Graver   M. Lowery   P. Piers        

Abstract Details

Purpose:

To measure the amount of chromatic aberration of different intraocular lens designs.

Setting:

AMO Groningen BV, Netherlands

Methods:

Chromatic aberration was measured in vitro for nine different lens designs. Refractive error was measured in a model eye for five different wavelengths (450, 500, 550, 600, and 650nm). The best focus position was based on maximizing imaging quality (MTF at 50c/mm). Each measurement was performed for two lenses of the same design. Chromatic aberration was expressed refractive error in diopters in the spectacle plane. Results were fitted with a hyperbolic curve (refraction as a function of wavelength; Thibos et. al, 1992).

Results:

Over the measured range of wavelength the average chromatic aberration of the different lens designs was 1.47 diopter. The difference between the lens design having the largest amount of chromatic aberration and the lens design having the lowest amount of chromatic aberration was 1.03 diopters. The lens with the lowest amount of measured chromatic aberration shows smaller chromatic aberration than the aphakic eye. This means that the lens corrects corneal chromatic aberration.

Conclusions:

Chromatic aberration of IOLs can be measured in a physiologically representative chromatic eye model. Ocular chromatic aberration, measured in the range between 450nm and 650nm, varies by as much as 1 diopter between different IOL designs.

Financial Disclosure:

... is employed by a for-profit company with an interest in the subject of the presentation, ... receives consulting fees, retainer, or contract payments from a company producing, developing or supplying the product or procedure presented

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