Visual quality differences between orthokeratology and LASIK to compensate low-moderate myopia

Poster Details

First Author: D.Madrid-Costa SPAIN

Co Author(s):    L. Belda Salmer   C. P   S. Garc   R. Mont     

Abstract Details

Purpose:

To analyse the visual quality differences between orthokeratology and laser in situ keratomileusis (LASIK) to compensate low-moderate myopia.

Setting:

University of Valencia Spain.

Methods:

A CRX1 Adaptive Optics Visual Simulator (Imagine Eyes) was used to simulate the wavefront aberration’s pattern induced by ortokeratology and LASIK to compensate low-moderate myopia for 3 and 6mm pupil diameter. Monocular distance visual acuity (VA) at 100%, 50% and 10% of contrast and contrast sensitivity function (CSF) were measured for 3 and 6 mm of pupil size.

Results:

Ten eyes were evaluated. For 3mm of pupil size, differences were not found in VA at any of the contrast studied between both procedures (p=0.275). For 6 mm of pupil size, there were not statistically significant differences in VA at 100% of contrast (p= 0.09). However, at 50% and 10% of contrast, the LASIK provided better VA values than orthokeratology. Differences were not found in CSF at any of the frequencies studied between LASIK and orthokeratology for 3mm of pupil diameter. For 6 mm of pupil size, LASIK provided higher values of CSF than orthokeratology at 10, 20 and 25 cycles per degree.

Conclusions:

The results of this study using adaptive optics suggest that LASIK provides better visual quality outcomes than orthokeratology to compensate low-moderate myopia. FINANCIAL DISCLOSURE?: No