LASIK is one of the best types of corrective eye surgery. The term LASIK stands for Laser-Assisted In Situ Keratomileusis. This procedure can permanently reshape the cornea, which is the clear covering of the front of the eye with the help of a laser. LASIK is performed on millions of people every year. There are a wide variety of different optical lasers. This procedure can be used to correct near and far sightedness as well as astigmatism.