phlyctenular keratoconjunctivitis


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Related to phlyctenular keratoconjunctivitis: phlyctenular conjunctivitis, ligneous conjunctivitis

keratoconjunctivitis

 [ker″ah-to-kon-junk″tĭ-vi´tis]
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.

phlyctenular keratoconjunctivitis

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.