LASIK is a type of laser eye surgery intended to correct or lessen disorders with eyesight. It is performed by ophthalmologists, who are mDs who specialize in eye disorders. LASIK is typically a preferred alternative to photorefractive keratectomy, or PRK, as it is much less painful and requires less time for healing. Prior to LASIK surgery, the patient's corneas are analyzed with a computer driven scanning device and a map of the cornea is made. This step of the process also discovers astigmatism and also other peculiarities in the shape of the cornea. The eye surgeon uses this information to compute the amount and location of corneal tissue to be eliminated during the operation. The surgery is done while the patient is awake and alert, nonetheless, the person is often given a modest sedative and anesthetic drops for the eyes. The eye surgeon operates the lasers, which create all of the cutting. A flap is sliced in the cornea using a laser or a blade. Later, an excimer laser is used to remodel the cornea. The laser vaporizes tissue without inducing injury to the eye. Although relatively uncommon, complications or damage do occur with LASIK or other laser or non laser eye surgeries. Some of the more commonly reported complications of LASIK can include: infection, dry or light sensitive eyes, under or over correction, changing vision, halos or starbursts around lights, doubled vision, and issues with the flap that was made during the surgical procedure. Although LASIK technology is improving rapidly, scientists have not determined long-term or permanent damage. The lASIK procedure cannot be reversed.

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