LASIK is a form of laser-guided surgery to the eye meant to minimize or repair disorders with eyesight. The operation is carried out by ophthalmologists, who are physicians who specialize in eye disorders. LASIK is ordinarily a preferred alternative to pRK (photorefractive keratectomy), as it is much less painful and requires less time to recover completely. Prior to LASIK eye surgery, the patient's corneas are examined with a computerized sophisticated scanner and it creates a map of the cornea. This procedure also discovers astigmatism as well as additional irregularities in the cornea's shape. The eye surgeon uses this data to calculate the location as well as the amount of corneal tissue to be eliminated during the surgery. The surgery is carried out with the person awake and functional, still, the person is typically given a minor sedating agent and anesthetic drops for the eyes. The surgeon operates the laser machines, which produce all of the cutting. A flap is carved in the cornea using a blade or a laser. Afterwards, an excimer laser remodels the cornea. The laser vaporizes tissue without creating injury or damage. Although relatively uncommon, complications might occur with LASIK or any method of eye surgeries. Just some of the more commonly reported complications of LASIK include: infection, dry eyes and light sensitive eyes, over or under correction, fluctuating vision, starbursts or halos around lights, double vision, and difficulties with the flap produced during the operation. Although LASIK technology is improving very rapidly, scientists have not ascertained long-term complications or damage. The surgery cannot be reversed.

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