How laser vision correction work?
LASIK changes the way light is bent, or refracted, as it passes through the cornea so that it focuses properly on the retina and objects can be seen clearly. A device called a microkeratome cuts a thin flap in the surface of the cornea. An excimer laser beam then reshapes the cornea’s curvature to improve vision. The flap is then closed and covered with a protective contact lens. The entire procedure takes only 15-30 minutes per eye, and patients are often ready to leave within an hour or two. The flap heals on its own within a few days with no need for stitches.
