LASIK is a type of laser-guided eye operation intended to remedy problems with sight. It is performed by ophthalmologists, who are physicians or MDs who specialize in disorders of the eye. LASIK is ordinarily preferable to pRK eye surgery, as it is less pain-producing and requires less time for fulll healing. Prior to having LASIK surgery, the patient's corneas are examined with a computer controlled scanning device and a corneal map is devised. This process also spots astigmatism as well as other deviations in the cornea's shape. The operating surgeon uses this information to calculate the amount and location of corneal tissue to be eliminated during the operation. The operation is performed with the patient awake, nevertheless, the person is generally given a modest sedating agent and anesthetic drops for the eyes. The eye surgeon operates the laser machines, which make all of the cutting. A flap is cut in the cornea using a blade or a laser. Later, an excimer laser is used to remodel the cornea. The laser destroys tissue without creating damage or injury. Although usually uncommon, complications could occur with LASIK or any type of eye surgeries. Just a few of the more frequently reported complications of LASIK include: infection, light sensitive or dry eyes, over or under correction, changes in vision, rings around lights, doubled vision, and difficulties with the flap created during the surgery. Although LASIK technology is getting better rapidly, scientists have not completely defined long-term or permanent damage. The surgical procedure is irreversible.

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