Effect of laser <i>in situ</i> keratomileusis with corneal flap created by femtosecond laser on tear film detected by Keratograph in different age groups

Abstract

AIM:To explore the changes of tear film detected by Keratograph in the patients after laser in situ keratomileusis(LASIK)with corneal flap created by femtosecond laser. METHODS: Totally 75 myopic patients(150 eyes)were enrolled who underwent femtosecond laser LASIK from July 2014 to June 2015, including patientsRESULTS: Before surgeries, the dry eye symptoms score of three groups had no significant difference(P>0.05). After surgeries, there were significant difference at each follow-up time among the three groups on symptoms score(PPCONCLUSION: LASIK can affect the dry eye symptoms and the stability of tear film, which decreased by postoperative time. And the index recovered to preoperative levels earlier in younger patients.

Keywords

• femtosecond laser
• laser <i>in situ</i> keratomileusis
• tear break-up time
• tear meniscus height