LASIK is a form of laser-guided surgery to the eye which is intended to repair disorders with eyesight. The surgical procedure is carried out by ophthalmologists, who are medical physicians who specialize in eye disorders. LASIK is usually a preferred alternative to pRK surgery, as it is much less painful and requires less time to recover. Before having LASIK eye surgery, the patient's corneas are evaluated with a computerized sophisticated scanner and a corneal map is devised. This procedure also picks up astigmatism or additional peculiarities in the cornea's shape. The surgeon uses this data to ascertain the amount as well as location of corneal material to be eliminated during the surgery. The operation is done while the person is awake and alert, nonetheless, the patient is often given a mild sedative and anesthetic eye drops. The surgeon operates the lasers, which produce all of the incisions. A flap is carved in the cornea using a laser or blade. And then, an excimer laser remodels the cornea. The laser vaporizes tissue without creating damage to the eye. Although usually uncommon, complicating problems might occur with LASIK or any method of eye surgeries. Some of the more commonly reported complications of LASIK are: infection, light sensitive and dry eyes, over or under correction, fluctuations in vision, halos or starbursts around lights, double vision, and troubles with the flap that was made during the operation. Although LASIK technology is improving very rapidly, studies have not completely determined long-term damaging complications. The procedure can't be reversed.

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