Evaluation of corneal flap thickness in relation to central corneal thickness after laser assisted in situ keratomileusis using two types of micro keratomes

Background: The most common refractive surgical surgery for the treatment of myopia, hyperopia, and astigmatism is laser assisted in situ keratomileusis (LASIK). A very important step LASIK formation flap. corneal flap was made using a variety microkeratomes. purpose this study to compare central thickness following flap.Methods: This retrospective comparative performed on 200 eyeballs divided into four groups each 50 according type microkeratome used surgery; group 1 (M2 90), 2 130), 3 (SBK 4 130). Cases were operated during last seven years by ALCON WAVELIGHT EX500 unit (year production: 2012).Results: Two hundred 100 patients treated. Mean 103.3±9.54 mm, 126.05±17.07 120.9±14.4 141.19±11.63 mm SBK head created thinnest flaps first cut utilising 90, 130, M2 130 heads, respectively. 90 produced exact precise flap, followed head, as shown standard deviation difference from desired value.Conclusions: Of types, generally accurate flaps.