keratoconjunctivitis

DEFINITION of keratoconjunctivitis

This condition involves the transparent front part of the eye (cornea) and the thin mucous membrane covering the sclera and lining the eyelids (conjunctiva), leading to symptoms like redness, pain, tearing, photophobia, and blurred vision. Causes range from viral (e.g., adenovirus in epidemic keratoconjunctivitis), bacterial (e.g., Staphylococcus), allergic (e.g., vernal or atopic forms), autoimmune, toxic, or dry eye (keratoconjunctivitis sicca). Severe cases risk corneal scarring or vision loss if untreated.

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ETYMOLOGY of keratoconjunctivitis

greek Derived from Greek kerato- (κερατ-, from κέρας kéras, “horn,” referring to the cornea’s horn-like texture), conjunctiv- (from Latin conjunctivus, “connecting,” for the conjunctiva), and -itis (-ῖτις, inflammation).

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Aliases and Components

Aliases: Epidemic keratoconjunctivitis (adenoviral), vernal keratoconjunctivitis (VKC), atopic keratoconjunctivitis (AKC), keratoconjunctivitis sicca (dry eye). Components: kerato- (cornea/horn);conjunctiv- (conjunctiva); -itis (inflammation).

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Related Terms

Keratitis: Corneal inflammation alone. Conjunctivitis: Conjunctival inflammation alone (“pink eye”). Types: Superior limbic keratoconjunctivitis, phlyctenular keratoconjunctivitis, infectious bovine keratoconjunctivitis (veterinary). Associated: Blepharitis (eyelid inflammation), uveitis.

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DERIVATIONS of keratoconjunctivitis

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Query functionality

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Med roots Appendix A Prefixes Appendix B Combining Forms Appendix C Suffixes Appendix D Suffix forms