Topography-guided laser in situ keratomileusis (TOPOLINK) to correct irregular astigmatism after previous refractive surgery.
作者： Jorge L Alió , Jose I Belda , Amr A Osman , Ahmad M M Shalaby
DOI: 10.3928/1081-597X-20030901-06
关键词:
摘要: PURPOSE To assess whether topography-driven laser in situ keratomileusis (LASIK) can correct induced corneal irregular astigmatism. METHODS A prospective non-comparative case series of 41 eyes (38 patients) with astigmatism following refractive surgery, included two groups: Group 1 (26 eyes) a defined topographic pattern and 2 (15 no pattern. Ablation was performed using the Technolas 217C excimer software ablation program (TOPOLINK) based on topography. Uncorrected best spectacle-corrected visual acuity, manifest cycloplegic refraction, topography, superficial surface quality, image distortion were measured. RESULTS At 6 months follow-up (defined pattern) mean preoperative BSCVA improved from 0.16 +/- 0.11 LogMAR (0.4 to 0) 0.09 0.10 (0.2 (P = .001) (safety index 1.1). In (no pattern), 0.18 0), similar postoperative 0.17 (0.3 0.98). Mean UCVA > or 0.3 25 (96.2%) (efficacy 0.8) 7 (46.6%) 0.5). Both quality significantly 1; there significant changes 2. We reoperated nine (21.9%). CONCLUSIONS Topographic-assisted LASIK helpful selected cases where showed It ineffective undefined Partial correction irregularity regression obtained effect common.
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