Persistent hyperplastic primary vitreous (PHPV), also known as persistent fetal vasculature, is a rare congenital developmental malformation of the eye, caused by the failure of regression of the primary vitreous. It is divided into anterior and posterior types and is characterized by the presence of a vascular membrane located behind the lens. The condition can be of an isolated type or can occur with other ocular disorders. Most cases of PHPV are sporadic, but it can be inherited as an autosomal dominant or recessive trait.

This is an excerpt from an abstract by Barkur Shastry in a study of Clinical and Experimental Opthamology. Over the next few days and weeks I will be doing a bit of research in regard to a link and will post anything interesting I find.