LASIK is a form of laser-guided operation to the eye meant to repair issues with eyesight. The operation is carried out by ophthalmologists, who are physicians specializing in eye problems. LASIK is ordinarily a preferred alternative to pRK eye surgery, as it is much less painful and requires less time to heal completely. Prior to having LASIK eye surgery, the patient's corneas are analyzed with a computerized scanning device and it creates a map of the cornea. This stage of the procedure also detects astigmatism & other irregularities in the shape of the cornea. The eye surgeon uses this data to find out the location and amount of corneal material to be eliminated during the surgery. The operation is carried out while the patient is awake and functional, all the same, the patient is often given a modest sedating medication and anesthetic eye drops. The operating surgeon operates the lasers, which do all of the incisions. A flap is sliced in the cornea, which is the clear front part of the eye, using a laser or blade. Subsequently, an excimer laser is used to remodel the cornea. The laser vaporizes tissue without creating harm to the eye. Although relatively uncommon, complications do occur with LASIK or non laser forms of eye surgeries. A number of the more typically reported complications of LASIK are: infection, light sensitive and dry eyes, over or under correction, changes in vision, rings around lights, double vision, and difficulties with the flap that was produced during the surgical procedure. Although LASIK technology is getting better quickly, clinical studies have not defined long-term damaging complications. The process is irreversible.

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