LASIK is a type of laser eye surgery designed to rectify disorders with sight. The operation is performed by ophthalmologists, who are mDs specializing in eye problems. LASIK is usually preferred to photorefractive keratectomy, or PRK, as it is not as painful and requires less time for full recovery. 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 stage of the procedure also spots astigmatism as well as other peculiarities in the cornea's shape. The surgeon uses this data to find out the amount and location of corneal material to be removed during the surgery. The operation is done with the person awake, nevertheless, the patient is generally given a minor sedating drug and anesthetic eye drops. The eye surgeon operates the lasers, which create all of the incisions. A flap is cut in the cornea, which is the clear front part of the eye, using a blade or laser. Afterwards, an excimer laser is used to remodel the cornea. The laser destroys tissue without creating injury or damage. Although usually uncommon, complicating problems do occur with LASIK or any type of eye surgeries. Just a few of the more regularly reported complications of LASIK can include: infection, dry eyes and light sensitive eyes, over or under correction, changes in vision, rings around lights, double vision, and difficulties with the flap that was made during the surgical procedure. Although LASIK technology is getting better rapidly, research studies have not defined long-term complications or damage. The surgery is irreversible.

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