Conjunctivitis Definition: Conjunctivitis is an inflammation of the conjunctiva (the outermost layer of the eye and the inner surface of the eyelids), often due to infection. There are three common varieties of conjunctivitis, viral, allergic, and bacterial. Viral and bacterial conjunctivitis are contagious. Other causes of conjunctivitis include thermal and ultraviolet burns, chemicals, toxins, overuse of contact lenses, foreign bodies, vitamin deficiency, dry eye, dryness due to inadequate lid closure, epithelial dysplasia (pre-cancerous changes), and some conditions of unknown cause such as sarcoidosis.

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eMedicine - Conjunctivitis : Article by Michael A Silverman, MD - Conjunctivitis - Conjunctivitis is one of the most common nontraumatic eye complaints resulting in presentation to the ED. The term describes any inflammatory process that involves the conjunctiva; however, to most patients, conjunctivitis (often... conjunctivitis, viral conjunctivitis, keratoconjunctivitis, chlamydial conjunctivitis, follicular conjunctivitis ...

Kidshealth.org: Conjunctivitis - offers information on signs, symptoms, diagnosis, and treatments.

Conjunctivitis - "Pink eye" - Conjunctivitis - A graphic description of the eye condition, its various types and treatments. ... Click here for info on Conjunctivitis. Conjunctivitis, commonly known as pink eye, is an infection of ... three most common types of conjunctivitis are: viral, allergic, and bacterial. ...

Medinfo: Conjunctivitis (pink eye) - Medinfo's patient information on conjunctivitis, redness and soreness of the clear covering which coats the white of the eye and lines the inside of the eye lids. ... a fairly short time. Acute conjunctivitis may clear on its own, but ...