Changes of tear film after LASlK with corneal flap created by femtosecond laser and microkeratome / 国际眼科杂志(Guoji Yanke Zazhi)

ABSTRACT

To observe the changes of tear film on the patients after laser in situ keratomileusis(LASlK)with corneal flap created by femtosecond laser and microkeratome. ●METHODS: Totally 150 patients (300 eyes) with myopia received operation of LASlK. Patients were divided into two groups according to the methods of making corneal flap. The patients of group one were assigned to receiving LASlK with corneal flap creation by lntralase femtosecond laser (190 eyes of 95 patients), group two were assigned to receiving LASlK with corneal flap creation by microkeratome ( 110 eyes of 55 patients ). Dry eye symptom score, tear break-up time (BUT), Schirmer Ⅰtest(Slt), corneal fluorescein staining(FL)were recorded preoperatively and postoperatively at 1wk; 1, 3 and 6mo. ●RESULTS: Dry eye symptom score there existed obvious differences at 1wk; 1, 3mo between two groups(P0. 05). BUT there existed obvious differences at 1wk, 1, 3mo between two groups(P0. 05). SchirmerⅠ test there existed obvious differences in the 1wk, 1, 3mo between two groups(P0. 05). FL there existed obvious differences in the 1wk, 1, 3mo between two groups(P0. 05). ●CONCLUSlON The early stability of tear film decrease after operation in both of the two groups. The dry eye symptoms are lighter and recover faster.