eczematous conjunctivitis /eksem″ətəs/ , conjunctival and corneal inflammation associated with multiple tiny ulcerated vesicles. The cause is believed to be a delayed hypersensitivity to bacterial protein. If untreated, the condition may lead to ingrowth of small blood vessels in the cornea, eventually obscuring vision. Treatment usually includes topical instillation of corticosteroids. Also called staph marginal disease.