Laser in-situ Keratomileusis, or LASIK, is a popular surgical approach used to correct vision in people who are nearsighted, farsighted, or have astigmatism. All laser vision correction surgeries work by reshaping the cornea, or clear front part of the eye, so that light traveling through it is properly focused onto the retina located in the back of the eye. LASIK laser eye surgery (laser in-situ keratomileusis) is one of a number of different surgical techniques used to reshape the cornea. During LASIK laser eye surgery, an instrument called a microkeratome is used to cut a thin flap in the cornea. The cornea is then peeled back and the underlying cornea tissue is reshaped using an excimer laser. After the cornea is reshaped so that it can properly focus light into the eye and onto the retina, the cornea flap is put back in place and the laser eye surgery is complete.