Source : Webster's Revised Unabridged Dictionary (1913)

Ophthalmia \Oph*thal"mi*a\, n. [F. ophthalmie, L. ophthalmia,
   fr. Gr. ?, fr. ? the eye, akin to E. optic. See {Optic}.]
   (Med.)
   An inflammation of the membranes or coats of the eye or of
   the eyeball.

Source : WordNet®

ophthalmia
     n : severe conjunctivitis [syn: {ophthalmitis}]