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inflammation of the cornea and conjunctiva.
epidemic keratoconjunctivitis a highly infectious form, commonly with regional lymph node involvement, occurring in epidemics; an adenovirus has been repeatedly isolated from affected patients.
phlyctenular keratoconjunctivitis a form marked by formation of a phlyctenule (small lesion) at the corneal limbus.
keratoconjunctivitis sic´ca a condition marked by hyperemia of the conjunctiva, thickening and drying of the corneal epithelium, and itching and burning of the eye. Called also dry eye.
Etymology: Gk, phlyktaina, blister
an inflammatory condition of the cornea, characterized by tiny ulcerating nodules. It is seen most often in children as a response to allergens found in Mycobacterium tuberculosis, gonococci, Candida albicans, or various parasites. Vitamin deficiency may be a factor. The condition responds to topical corticosteroids, but corneal scars may remain. Also called phlyctenulosis, scrofulous keratitis. See also eczematous conjunctivitis.
A delayed hypersensitivity response (type IV) to antigens in the conjunctiva. The disease may be caused by Chlamydia, Mycobacterium tuberculosis, and Staphylococcus aureus. Symptoms include pain and photophobia; in severe cases, perforation of the cornea can occur. Treatment depends on the underlying cause.
See also: keratoconjunctivitis