Optical performance of four intraocular lenses

Session Details

Session Title: IOL technology/New IOLs etc.

Session Date/Time: Saturday 13/09/2014 | 08:30-10:30

Paper Time: 09:16

Venue: Boulevard A

First Author: : W.Hill USA

Co Author(s): :    D. Carson   X. Hong   M. Karakelle        

Abstract Details

Purpose:

To compare vision quality with ReSTOR +3.0 D and ReSTOR +2.5 D multifocal intraocular lenses (IOLs) and AT LISA tri, and FineVision trifocal IOLs.

Setting:

Laboratory bench testing.

Methods:

Resolution, image quality, and photic phenomena were evaluated in AcrySof IQ ReSTOR +3.0 D and AcrySof IQ ReSTOR +2.5 D multifocal IOLs versus AT LISA tri 839MP and FineVision MICRO F12 trifocal IOLs using a Badal optometer and a Snellen visual acuity chart. Simulated headlight images were obtained using a modulation transfer function (MTF) bench and a 50-µm pinhole target. MTF values using vertical and horizontal slits were determined at far, intermediate, and near distances.

Results:

Resolution at 20/40 Snellen visual acuity equivalent was attainable over nearly the entire viewing distance range with AT LISA tri and FineVision IOLs but background shadows were more prominent with AT LISA tri and FineVision IOLs than ReSTOR +2.5 D and ReSTOR +3.0D IOLS. Distance MTF peaks at the 20/20 equivalent spatial frequency were greatest for ReSTOR +2.5 D and ReSTOR + 3.0 D IOLs. The near MTF peak occurred at 53 cm with ReSTOR +2.5 D, with a 20/20 equivalent value lower than the near peaks of the other models, but higher than the intermediate foci of the trifocals.

Conclusions:

AT LISA tri and FineVision trifocal IOLs achieved a useful third focus for intermediate vision but were associated with increased background halos and reduced distance visual quality compared with ReSTOR +2.5 D and + 3.0 D multifocal IOLs.

Financial Interest:

NONE