LASIK is a form of laser eye surgery designed to correct difficulties with vision. It is carried out by ophthalmologists, who are physicians or MDs specializing in eye problems. LASIK is usually preferred to photorefractive keratectomy, or PRK, as it is not as painful and requires less time to heal completely. Prior to having LASIK eye surgery, the patient's corneas are analyzed with a computerized sophisticated scanning device and it makes a map of the cornea. This step of the procedure also discovers astigmatism and also additional peculiarities in the shape of the cornea. The surgeon uses this data to determine the location as well as the amount of corneal tissue to be removed during the surgery. The operation is done while the person is awake and functional, still, the person is generally given a modest sedating drug and anesthetizing drops for the eyes. The surgeon operates the lasers, which make all of the incisions. A flap is sliced in the cornea, which is the clear front part of the eye, using a blade or a laser. Then an excimer laser remodels the cornea. The laser destroys tissue without causing damage or injury. Although usually uncommon, complicating problems could occur with LASIK or non laser forms of eye surgeries. A few of of the more frequently reported complications of LASIK can include: infection, light sensitive or dry eyes, over or under correction, changing vision, starbursts or halos around lights, doubled vision, and issues with the flap created during the operation. Although LASIK technology is improving rapidly, clinical studies have not proven long-term complications. The surgical procedure can't be reversed.

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