Conjunctivitis is a conjunctival disease described as a inflammation of the conjunctiva, the outermost layer of the eye and the inner surface of the eyelids, which is most commonly due to an allergic reaction or an infection (usually viral, but sometimes bacterial. Fungal infections are rare and occur mainly in people who use corticosteroid eye drops for a long time or have eye injuries involving vegetable matter. Newborns are particularly susceptible to eye infections, which they acquire from organisms in the mother's birth canal (neonatal conjunctivitis. (Human Disease Ontology, DOID_6195)
