LASIK is a form of laser-guided surgery to the eye intended to cure or improve troubles with vision. The surgical procedure is performed by ophthalmologists, who are medical physicians who specialize in eye disorders. LASIK is typically a preferred alternative to pRK eye surgery, as it is less pain-producing and requires less time to recover completely. Before having LASIK eye surgery, the patient's corneas are analyzed with a computer driven scanner and it creates a map of the cornea. This stage of the procedure also picks up astigmatism and also other irregularities in the cornea's shape. The eye surgeon uses this information to determine the amount and location of corneal tissue to be removed during the surgery. The surgery is performed with the patient awake and functional, nonetheless, the patient is generally given a mild sedating medication and anesthetizing eye drops. The eye surgeon operates the lasers, which do all of the cutting. A flap is sliced in the cornea, which is the clear front part of the eye, using a blade or laser. Subsequently, an excimer laser is used to remodel the cornea. The laser destroys tissue without creating damage to the eye. Although relatively uncommon, complicating problems can occur with LASIK or any eye surgeries. A few of of the more typically reported complications of LASIK include: infection, light sensitive and dry eyes, over or under correction, fluctuations in vision, halos or starbursts around lights, double vision, and disorders with the flap made during the surgery. Although LASIK technology is getting better quickly, studies have not completely defined long-term or permanent damage. The procedure can't be reversed.

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