U

Eye Health Glossary

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uv radiation

UV radiation is the type of wavelength used for LASIK and PRK (UV radiation is absorbed by the cornea, which is how corneal tissue is ablated); its wavelengths are shorter than visible blue wavelengths. Excessive exposure to UV radiation from the sun can result in photokeratitis, which is essentially a sunburn of the cornea.

uvea

The area of the eye that is rich in both blood vessels and pigment. The uvea consists of the iris, ciliary body, and choroid.

uveitis

Inflammation of the uvea. Learn more about Uveitis.

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