RESUMEN
Objective To investigate the visual acuity improvement and related factors for myopia after femtosecond flap excimer laser surgery. Methods 72 myopic patients (129 eyes) in our hospital between January 2010 and December 2013 were chosen. The patients all received femtosecond flap excimer laser surgery. The visual acuity improvement after surgery was observed, and the influencing factors were analyzed. Results The distance vision (VA), near vision (NVA) and best corrected visual acuity (BCVA) significantly increased before surgery (P<0.05). Logistic regression analysis showed that preoperative BCVA, NVA, axial length, cutting ratio, axial length and time of near vision were the affecting factors of visual acuity (P<0.05). Conclusion Femtosecond flap excimer laser surgery for myopia has significant effect , but the preoperative visual acuity was affected by BCVA , NVA, cutting ratio, axial length and time of near vision.