LASIK is an acronym for Laser
In-situ Keratomileusis, which simply means "to shape
the cornea within using a laser". It corrects vision by
reshaping the cornea (outer window of the eye) so that light rays
focus more precisely on the retina, thereby reducing or eliminating
refractive errors.
LASIK is a procedure used to
correct or reduce moderate to high levels of myopia. In LASIK, the
surgeon combines the use of a keratome and the excimer laser to
remove a thin layer of tissue from the center of the cornea. By
removing the tissue, the central cornea is flattened and myopia is
reduced.