It connects smoothly to thesclera(the white part of the eye).
The cornea refracts light through thelensbelow it, which allows the eye to process images.
Injuries to the cornea can impair a persons vision.
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The cornea sits above theirisand the lens.
The degree of curvature of the cornea greatly affects its ability to refract light.
Minor abrasions that affect only the epithelial layer usually heal themselves within 24 hours.
However, deeper scratches that reach Bowmans layer often produce corneal scarring that can impair vision.
Injuries that extend below Bowman’s layer, such as a penetrating eye wound, can cause blindness.
Tests
Most corneal conditions can be detected by an eye doctor through a visual exam.
The doctor may shine a bright light into the eye to check the cornea for abnormalities.
In a slit lamp examination, ophthalmologists will evaluate not just the cornea but also underlying structures.
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Updated January 8, 2020.
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Updated March 4, 2020.
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Updated August 28, 2018.
