LASIK is a form of laser surgery to the eye which is intended to remedy issues with vision. The operation is performed by ophthalmologists, who are mDs who specialize in eye problems. LASIK is ordinarily a preferred alternative to pRK surgery, as it is much less painful and requires less time for fulll healing. Before having LASIK eye surgery, the patient's corneas are examined with a computer controlled scanning device and a map of the cornea is made. This stage of the process also picks up astigmatism and also other problems in the cornea's shape. The eye surgeon uses this data to judge the amount as well as location of corneal tissue to be removed during the surgery. The operation is done with the person awake, however, the patient is often given a mild sedative and anesthetizing drops for the eyes. The eye surgeon operates the lasers, which produce all of the incisions. A flap is cut in the cornea using a laser or blade. Later, an excimer laser is used to remodel the cornea. The laser vaporizes tissue without creating harm to the eye. Although relatively uncommon, complicating problems can occur with LASIK or any form of eye surgeries. A number of the more typically reported complications of LASIK can include: infection, dry or light sensitive eyes, over or under correction, fluctuating vision, rings around lights, doubled vision, and disorders with the flap that was created during the operation. Although LASIK technology is improving very rapidly, scientists have not completely defined long-term or permanent damage. The surgery cannot be reversed.

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