LASIK is a form of laser eye operation meant to cure or improve difficulties with sight. The surgical procedure is performed by ophthalmologists, who are medical physicians specializing in eye disorders. LASIK is generally preferred to pRK surgery, as it is less painful and requires less time to heal completely. Before having LASIK surgery, the patient's corneas are analyzed with a computerized sophisticated scanning device and a map of the cornea is made. This stage of the procedure also detects astigmatism and additional peculiarities in the shape of the cornea. The operating 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 with the patient awake and alert, nevertheless, the patient is typically given a minor sedating drug and anesthetizing eye drops. The eye surgeon operates the lasers, which do all of the incisions. A flap is cut in the cornea using a laser or blade. And then, an excimer laser is used to remodel the cornea. The laser destroys tissue without inducing harm to the eye. Although relatively uncommon, some complications could occur with LASIK or any method of eye surgeries. A number of the more frequently reported complications of LASIK typically include: infection, dry eyes and light sensitive eyes, over or under correction, fluctuations in vision, halos or starbursts around lights, doubled vision, and issues with the flap created during the surgical procedure. Although LASIK technology is getting better rapidly, scientists have not completely determined long-term damaging complications. The lASIK procedure is irreversible.

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