1) Incision 2) Incision of the cornea 3) Section 4) Surgical incision 
Incision of the cornea. 
<procedure> A surgical incision (cut) of the cornea. A radial keratotomy is a surgical procedure designed to flatten the cornea and thereby correct myopia (nearsightedness). It is called a radial keratotomy because the incisions resemble the spokes in a bicycle wheel. ... (12 Dec 1998) ... 
(ker″ә-tot´ә-me) incision of the cornea. radial keratotomy an operation in which a series of incisions is made in the cornea from its outer edge toward its center in a spokelike fashion; done to flatten the cornea for correction of myopia.
Type: Term Pronunciation: ker′ă-tot′ŏ-mē Definitions: 1. Any incision through the cornea. 2. An operation making a partial thickness incision into the cornea to flatten it and reduce its refractive power in that meridian.
Keratotomy: A surgical incision (a cut) made into the cornea. A radial keratotomy is a surgical procedure designed to flatten the cornea, reduce its optical power, and correct nearsightedness (myopia). The procedure is called a radial keratotomy because the incisions resemble the spokes in a bicycle wheel.
[n] - surgical incision into the cornea
noun surgical incision into the cornea
Removal of part of the thickness of the cornea.
incision of the cornea.