retinopathy of prematurity
nounMedical Definition of retinopathy of prematurity
: an ocular disorder of premature infants that occurs when the incompletely vascularized retina of such an infant completes an abnormal pattern of vascularization and that is characterized by the presence of an opaque fibrous membrane behind the lens of each eye
—abbreviation ROP
— called also retrolental fibroplasia