Cornea
Cornea: The clear front window of the eye, which transmits and focuses light into the eye. The cornea is more than a protective film; it is a fairly complex structure that has five layers.
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Corn: A small callused area of skin caused by local pressure that irritates tissue over a bony prominence. Although the surface area of a corn may be small, the area of hardening actually extends into the deeper layers of skin and flesh. The inside projection of the corn is what causes discomfort. Corns most commonly […]
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Corneal: Pertaining to the cornea, the clear front window of the eye that transmits and focuses light into the eye.
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Corneal abrasion: A scratch or scrape on the cornea, the clear front window of the eye that transmits and focuses light into the eye.
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Corneal dystrophy: A condition in which one or more parts of the cornea lose their normal clarity due to a buildup of cloudy material. There are over 20 corneal dystrophies that affect all parts of the cornea.
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Corneal dystrophy, Cogan: A disorder in which the cornea shows grayish fingerprint lines, geographic map-like lines, and dots (or microcysts). These lines and dots can be seen on examination with a slit-lamp, which focuses a high-intensity light beam through a slit while the examiner uses a magnifying scope to look at the front of the […]