radial keratotomy

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Keratotomy involving a radial pattern of incisions, used to reduce or correct myopia.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun an eye surgery procedure to correct myopia (near-sightedness) using a series of incisions in the cornea, radiating from a central point (hence radial).

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun radial pattern of incisions in the cornea that cause the cornea to bulge; performed to correct myopia