Comparison analisys of the cornea biomechanical response after LASIK with femtosecond laser or mechanical microkeratome

The aim of the present research was to compare the dynamics of the cornea radius curvature changing, using two techniques of the flap creation: femtosecond laser and mechanical microkeratome. There were 48 patients (85 eyes) with LASIK, using microkeratome or femtosecond laser. All patients got keratotopograthy on "Pentacam Oculus" before the surgery and one month later. Results showed that relative postsurgical undercorrection appeared in both groups because of the cornea biomechanical response and this undercorrection was statistically lower in the femtosecond laser group. Usage of the femtosecond laser gives an opportunity to create uniform flap (vertically and horizontally) with the easy predictable parameters. It provides a higher quality of patients visual life.