Pronunciation: (KOR-nee-uh)

The transparent part of the eye that covers the iris and the pupil and allows light to enter the inside.

Source: NCI Dictionary of Cancer Terms

Caption: Anatomy of the eye, showing the outside and inside of the eye including the eyelid, pupil, sclera, iris, cornea, lens, ciliary body, retina, choroid, vitreous humor, and optic nerve.

Date last modified: 2007-09-28