WAVEFRONT-GUIDED VERSUS CONVENTIONAL LASER IN SITU KERA TOMILEUSIS FOR LOW AND MODERATE MYOPIA

Abstract

This study included 12 patients (24 eyes) from 19 to 50 years of age with mean of 27 years with low to moderate myopia (- 1.0 to - 6.0) and myopic astigmatism of (-0.5 to - 3.0). None of the patients had Keratoconus, current or previous history of eye inflammation, dry eye syndrome, Glaucoma, diabetic retinopathy requiring laser photocoagulation, thin corneas less than 450 microns, autoimmune disease or systemic vascular disease. In the 12 patients, 12 eyes were subjected to Wavefront customized corneal ablation and the other eye of the same patient was treated with conventional LASIK. Preoperatively a full ophthalmologic examination was performed for all patients including: 1. Uncorrected visual acuity (UCVA) 2. Best spectacle-corrected visual acuity (BSCVA) using Snellen's E chart. Preoperatively BSCVA was 0.9 or better for all patients. 3. Manifest refraction both objective (using NIDEK-ARK 700 autorefractometer) and subjective was performed. 4. Corneal topography using Humphrey Atlas Corneal Topography System, Mastervue Software, Jena, Germany 5. Intraocular pressure measurement using applanation tonometry (Haagstriet model) 6. Slit lamp examination of the anterior segment (NIDEK, Gamagori, Japan)