A developmental ocular anomaly in which the primary vitreous body and its surrounding hyaloid vasculature failed to regress. It is usually unilateral and characterized by cataract; microphthalmos (small eyeballs), and retrolenticular fibrovascular tissue. (from Yanoff: Ophthalmology, 2nd ed.). The disease is Monarch Disease Ontology identifier MONDO_0019631 (persistent hyperplastic primary vitreous). Also known as: PFVS, PHPV, congenital retinal detachment, ncRNA disease, non-syndromic congenital retinal non-attachment, persistent fetal vasculature syndrome, persistent foetal vasculature syndrome.