Fig. 1. Persistent hyperplastic primary vitreous (PHPV). A wide-angle fundus photograph of the left eye in a 10-year-old boy with the posterior form of PHPV demonstrates a fibrous stalk arising from the optic disc and extending into the central vitreous. (Sebag J: The Vitreous: Structure, Function and Pathobiology, p 99. New York, Springer-Verlag, 1989.)