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Description: A short overview of the PRK procedure. Photorefractive keratectomy (PRK) is a type of refractive surgery.With PRK, your ophthalmologist uses a laser to change the shape of your cornea. This improves the way light rays are focused on the retina. PRK is used to treat myopia (nearsightedness), hyperopia (farsightedness) and astigmatism.
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