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radial keratotomy n a surgical operation on the cornea for the correction of myopia that involves flattening the cornea by making a series of incisions in a radial pattern resembling the spokes of a wheel abbr. RK compare PHOTOREFRACTIVE KERATECTOMY
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an operation for short-sightedness (myopia). Deep cuts into the tissue of the cornea are placed radially around the outer two-thirds of the cornea; this flattens the curvature of the central part of the cornea and reduces the myopia. This procedure, used only for slight degrees of myopia, is being superseded by excimer laser treatment.
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an operation in which a series of incisions is made in the cornea from its outer edge toward its center in spokelike fashion; done to flatten the cornea and thus to correct myopia.Medical dictionary. 2011.