Comparison of postoperative visual quality after SMILE and LASEK for high myopia: A 1-year outcome

摘要: Purpose To compare the 1-year outcome of visual quality after laser-assisted subepithelial keratomileusis (LASEK) and femtosecond small incision lenticule extraction (SMILE) for high myopia correction. Materials methods This prospective, comparative study included 24 eyes patients in LASEK group, with a mean spherical equivalent (SE) -7.59 ± 1.32 diopters, 26 SMILE SE -7.91 1.08 diopters. Visual acuity, corneal topography, contrast sensitivity (CS), wavefront aberrations were recorded preoperatively compared postoperative measurements. Objective scatter index (OSI) modulation transfer function (MTF) cut-off frequency measured 1 year postoperatively. Results One postoperatively, two groups demonstrated no significant difference CS at all spatial frequencies. The increments higher-order (HOAs) (HOA = 0.583 0.210 μm), including aberration (SA) (SA 0.546 0.249 higher (P < 0.05) group than those 0.451 0.143 μm; SA 0.450 0.340 μm) surgery. There differences coma trefoil between groups. OSI MTF exhibited postoperatively. No vision-threatening complications noted any stage either group. Conclusions Both are safe effective surgical options correction myopia. has lower HOAs induction rate