LASIK is a type of laser surgery to the eye designed to remedy issues with eyesight. The surgery is carried out by ophthalmologists, who are medical doctors specializing in eye problems. LASIK is commonly a preferred alternative to photorefractive keratectomy, or PRK, as it is much less painful and requires less time to heal completely. Before having LASIK eye surgery, the patient's corneas are examined with a computer controlled sophisticated scanner and it creates a map of the cornea. This procedure also discovers astigmatism & other deviations in the shape of the cornea. The surgeon uses this information to find out the location and amount of corneal tissue to be removed during the surgery. The operation is carried out while the patient is awake, nevertheless, the person is often given a minor sedating agent and anesthetizing eye drops. The surgeon operates the laser machines, which do all of the incisions. A flap is cut in the cornea, which is the clear front part of the eye, using a blade or laser. Afterwards, an excimer laser remodels the cornea. The laser vaporizes tissue without creating damage. Although relatively uncommon, damaging complications might occur with LASIK or any method of eye surgeries. Just some of the more frequently reported complications of LASIK can include: infection, light sensitive and dry eyes, over or under correction, changes in vision, rings around lights, doubled vision, and disorders with the flap created during the operation. Although LASIK technology is getting better rapidly, research has not proven long-term damaging complications. The surgical procedure cannot be reversed.

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