Definition of cornea
The transparent layer making up the outermost front part of the eye, covering the iris, pupil and anterior chamber.
Examples of cornea in the following topics:
- The cornea, the front transparent layer of the eye, along with the crystalline lens, refract (bend) light to focus the image on the retina.
- After passing through the cornea, light passes through the aqueous humour, which connects the cornea to the lens.
- This clear gelatinous mass also provides the corneal epithelium with nutrients and helps maintain the convex shape of the cornea.
- The lens is a transparent, convex structure located behind the cornea.
- Many structures in the human eye, such as the cornea and fovea, process light so it can be deciphered by rods and cones in the retina.
- Specialized proteins that make up the eye (iris, lens, and cornea) are only expressed in the eye, whereas the specialized proteins in the heart (pacemaker cells, heart muscle, and valves) are only expressed in the heart.