Visual simulation through different intraocular lenses in patients with prior myopic corneal ablation using adaptive optics: impact of tilt and decentration

Poster Details

First Author: D.Madrid-Costa SPAIN

Co Author(s):    J. Ruiz Alcocer   C. P   T. Ferrer Blasco   R. Mont     

Abstract Details

Purpose:

To evaluate visual quality differences among intraocular lenses (IOLs) in patients with previous myopic laser ablations and to assess the impact of decentration and tilt of IOLs on visual quality

Setting:

University of Valencia, Spain

Methods:

In this in-vivo experimental study, an adaptive optics visual simulator was used to simulate the wavefront aberration’s pattern of one aberration-correcting IOL (AcrySof IQ SN60WF®), one aberration-free IOL (Akreos Adapt® AO) and one spherical IOL (Triplato®) in five situations: centered, 0.2 mm and 0.4 mm of decentration, 2° and 4° of tilt, in two groups: with simulated low and high myopic laser corneal ablations (group A and B, respectively). Monocular distance visual acuity (VA) at 100%, 50% and 10% of contrast were measured.

Results:

Ten eyes of ten patients were evaluated. When the IOLs were centered, the AcrySof IQ SN60WF® IOL provides the best visual quality results in both groups. When the IOLs were misaligned there was a decrease of visual quality for all simulated IOLs, except for the Akreos Adapt AO® IOL in group B. In the misaligned situations, all simulated IOLs obtained comparable visual quality results in both groups.

Conclusions:

The results obtained in our study through AO simulation suggest that in patients with previous myopic laser corneal ablation, aberration-correcting IOLs should be implanted. The decrease in visual quality when these lenses are decentered or tilted demonstrates the crucial importance of an accurate implantation of these IOLs. FINANCIAL DISCLOSURE?: No