Two-year outcomes after full-thickness astigmatic keratotomy combined with small-incision lenticule extraction for high astigmatism

Abstract Background To evaluate clinical outcomes after full-thickness astigmatic keratotomy (FTAK) combined with small-incision lenticule extraction (SMILE) in eyes high astigmatism. Methods This study comprised 75 of 43 patients over 4.0 diopters (D) astigmatism who were treated SMILE FTAK. Visual acuities and refractive measurements evaluated at 1 month FTAK, 1, 6, 12, 24 months SMILE. Vector analysis the changes was performed using Alpins method. Results Twenty-four procedure, average spherical equivalent reduced from − 6.56 ± 2.38 D to 0.36 0.42 ( p < 0.001). The uncorrected corrected distance visual improved 1.54 5.53 0.02 0.09 0.03 0.07 0.08 (both 0.001), respectively. preoperative mean 5.48 1.17 D, which 2.27 0.97 0.34 0.26 FTAK SMILE, respectively surgically-induced 3.38 1.18 2.22 0.84 5.39 1.20 Furthermore, correction index 0.63 0.17, 0.90 0.40, 0.98 0.06, There no intraoperative or postoperative complications. Conclusion Our surgical procedure combining showed good stable during two-year follow-up for treatment