LASIK Surgery -- The LASIK procedure uses both surgery and a laser to treat nearsightedness, farsightedness and astigmatism. In LASIK, the doctor surgically creates a flap of tissue on the front surface of the cornea. The flap is folded back and a laser is used to reshape the layer of tissue underneath (the middle layer of the cornea).

Once this is completed, the flap is repositioned and allowed to heal.
Candidates for LASIK should be at least 18 years old, have stable vision and no abnormalities of the cornea or external eye.