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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


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


University of Valencia Spain.


A CRX1 Adaptive Optics Visual Simulator (Imagine Eyes) was used to simulate the wavefront aberrationÂ’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.


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.


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

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