Foveal Hypoplasia-Presenile Cataract Syndrome, also known as o'donnell-pappas syndrome, is related to foveal hypoplasia 1. An important gene associated with Foveal Hypoplasia-Presenile Cataract Syndrome is PAX6 (Paired Box 6). Affiliated tissues include eye and retina, and related phenotypes are nystagmus and cataract