Inflammation of the cornea (see eye). The conjunctiva may also be inflamed (keratoconjunctivitis). Depending on the cause, including dryness of the eye (from low tear production or inability to close the eye), chemical or physical injury, or certain diseases, it may or may not cause pain, visual-field defects (including blindness), and damage to the eye.

This entry comes from Encyclopædia Britannica Concise.
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