PRK (photorefractive keratectomy)

PRK (photorefractive keratectomy) is a type of laser refractive surgery that can be used to improve vision affected by refractive errors. A refractive error is when the eye cannot refract (bend) light correctly. PRK uses a laser to adjust the shape of the cornea, which improves how light focuses on the retina. PRK may be used to treat nearsightedness (myopia), farsightedness (hyperopia) and astigmatism.

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