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- DictionaryCor·ne·a/ˈkôrnēə/
noun
- 1. the transparent layer forming the front of the eye.
May 30, 2024 · noun. : the transparent part of the coat of the eyeball that covers the iris and pupil and admits light to the interior see eye illustration.
The cornea is the transparent front part of the eye that covers the iris, pupil, and anterior chamber. Along with the anterior chamber and lens, the cornea refracts light, accounting for approximately two-thirds of the eye's total optical power. In humans, the refractive power of the cornea is approximately 43 dioptres.
Feb 27, 2019 · The cornea is the clear front surface of the eye. It lies directly in front of the iris and pupil, and it allows light to enter the eye. Viewed from the front of the eye, the cornea appears slightly wider than it is tall. This is because the sclera (the "white" of the eye) slightly overlaps the top and bottom of the anterior cornea.
Jan 9, 2024 · Your cornea is the clear, dome-shaped covering at the front of each of your eyes. It’s like your eye’s version of a windshield. It keeps debris, germs and more out. Its specific shape plays a key role in how your eyesight works and filters some ultraviolet (UV) rays.
Nov 16, 2023 · Your cornea is your eye’s clear, protective outer layer. It acts like a barrier against dirt and germs, and it helps filter out some of the sun's damaging ultraviolet light. It also...
Jan 19, 2018 · The cornea’s main function is to refract, or bend, light. The cornea is responsible for focusing most of the light that enters the eye. The cornea is composed of proteins and cells.
Cornea definition: the transparent anterior part of the external coat of the eye covering the iris and the pupil and continuous with the sclera.. See examples of CORNEA used in a sentence.
