a curved incision made in the periphery of the cornea. It is usually performed in the region of greatest curvature of the cornea in order to flatten it and hence reduce *astigmatism.
an anomaly or anatomical variation in which there is a slight indentation of the endometrium at the top of the uterus. Unlike a septate uterus, in which the indentation extends into a septum that divides the interior of the uterus, and a *bicornuate uterus, it does not normally affect reproductive function. See also uterus didelphys.... arcuate uterus
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 This procedure is now rarely performed, having been superseded by *excimer laser treatment.... radial keratotomy
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