Abstract:Purpose: To compare SMILE (Small Incision Lenticule Extraction) and FS-LASİK (Femtosecond Laser In Situ Keratomileusis) procedures in terms of dry eye disease.
Material and Methods: One hundred and six eyes of 53 patients with myopia and/or myopic astigmatism who had undergone SMILE procedure were compared with 106 eyes of 53 patients with myopia and/or myopic astigmatism who had undergone FS-LASIK procedure in terms of dry eye disease.
Results: The mean postoperative 1st day, 1st week, 1st month OSDI (Ocular Surface Disease Index) scores of the second group were significantly higher than those of the first group (p values, 0.000, 0.000 and 0.000 respectively). The mean postperative 1st day, 1st week, 1st month, 3rd month and 6th month TBUT (Tear break-up time) values of the second group were significantly lower than those of the first group (p values, 0.000, 0.000, 0.000, 0.003 and 0.003 respectively). The mean postperative 1st day, 1st week, 1st month, 3rd month and 6th month ST1 (Schirmer Test 1) values of the second group were significantly lower than those of the first group (p values, 0.000, 0.000, 0.000, 0.003 and 0.002 respectively). The mean postoperative 1st day, 1st week, 1st month, 3rd month and 6th month staining values of the second group were significantly higher than those of the first group (p values, 0.007, 0.001, 0.000, 0.042 and 0.041 respectively). However, all postoperative dry eye tests of both groups returned to preoperative values after postoperative 3rd month.
Conclusion: The signs and symptoms of dry eye disease are fewer and last shorter in SMILE procedure, when compared with FS-LASIK procedure. But dry eye disease is transient after both procedures.
