Figure 1. Time dependent changes in the Ocular Surface Disease Index (OSDI) (mean ± SD) after small incision lenticule extraction (SMILE) and femtosecond LASIK (femto-LASIK).
*Significantly higher than the preoperative level (SMILE; P<0.05). †Significantly higher than the preoperative level (femto-LASIK; P<0.05). ‡Significantly different between groups (P<0.05).