LASIK (laser-assisted in situ keratomileusis) is a safe, reliable and painless way to improve vision and reduce or eliminate the need to wear glasses or contact lenses. 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.
During the procedure, a device called a microkeratome creates a thin flap on the surface of the cornea. Patients are given anesthesia so they can not feel the instruments. During the procedure, a femtosecond laser creates a thin flap on the surface of the cornea. The flap is then lifted and the excimer laser beam reshapes the cornea (steepened for far-sighted patients, flattened for near-sighted patients). The flap is then closed and heals around the edges within the first few hours.
The entire procedure takes only 5 minutes per eye, and patients are often ready to leave within an hour or two.