Abstract
Abstract: :
Purpose: To evaluate the safety and efficacy of topography–guided LASIK re–treatment, utilizing the Allegretto–Wave system. Methods:11 consecutive eyes that had LASIK and were symptomatic, underwent topo–guided treatment, based on 8 reproducible measurements. We evaluated pre–, and post–operative refraction, Ablation diameter and centration, cornea and flap thickness, low contrast sensitivity (LCS) and possible complications. Follow–up was 2–6 months (4.5) Results: 11 eyes were included. The mean values were: refractive error: sphere: –1,85D (plano to –2.50) postop –0.55 and cylinder: –1.50D (0 to –2,75) postop –0.25. UCVA improved from 20/40 to 20/18. There was no loss of BCVA in any case. LCS improved by 150%. 5 eyes required further treatment for spherical adjustment. Results: Topography–guided LASIK re–treatment with the ALLEGRETTO–WAVE system, appears to be safe and very effective for correction of residual refractive error, small and/or decentered ablation zone and the improvement of visual function. It has demonstrated in this limited study the ability to predictably improve quality of vision.
Keywords: topography • refractive surgery: corneal topography • refractive surgery: LASIK