Femtosecond laser has a wavelength of 1053 nm. It is a type of infrared laser. It is similar to Nd: YAG laser in creating photo disruption of the transparent tissues like the cornea. Both of these laser systems generate an expanding cloud of ionized molecules and also free electrons that ultimately cause acoustic shock wave to disrupt the tissue. There are several types of microkeratomes, which allow satisfactory reproducibility in an ever more secure surgical context. Technical and practical knowledge of the microkeratome used is therefore a necessary and essential prerequisite before all LASIK