LASIK (Laser-Assisted In-Situ Keratomileusis) is the most common type of refractive surgery and is recommended to treat varying degrees of nearsightedness, farsightedness and astigmatism. This outpatient procedure is quick and relatively painless, and generally results in minimal post-operative pain and rapid vision recovery. During LASIK, the surgeon makes a small flap in the cornea, which is a clear, dome-shaped surface that covers the front of the eye, and folds it back. Then a laser reshapes the cornea. For clear vision, the eye’s cornea and lens must bend (refract) light rays properly in order to allow images to be in focus, otherwise they will be blurry.