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PRK

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Photo-Refractive Keratectomy (PRK) was the original form of excimer laser vision correction to correct nearsightedness, astigmatism, and now farsightedness. It involves a non-thermal ultraviolet wave length excimer laser to reshape the surface of the cornea for correction of these refractive errors. This surgery typically takes less than five minutes per eye and has a prolonged healing period requiring a bandage contact lens for three to five days following surgery, a protracted course of topical steroids for one to two months, and a slow improvement of visual function over several days to several weeks.