This refractive surgery procedure known as LASIK (laser in-situ keratomileusis) permanently changes the shape of the cornea. During the procedure, the surgeon creates a small corneal flap on the surface of the cornea. When this “hinged” flap is folded back, a small area of the cornea is exposed. The surgeon then applies the excimer laser, sculpting the tissue and reshaping the corneal tissue. Lastly, the surgeon replaces the flap, which bonds without the need for stitches.