Definition of ophthalmia neonatorum in US English:

ophthalmia neonatorum


  • Conjunctivitis, usually purulent, occurring in infants in the first month of life, often as the result of mother-to-child transmission of organisms present in the genital tract.


Mid 19th century; earliest use found in Richard Dennis Hoblyn (1803–1886), educational writer. From post-classical Latin ophthalmia neonatorum from ophthalmia + neonatorum of the newborn, genitive plural of neonatus.