Cone-Rod Synaptic Disorder, Congenital Nonprogressive, also known as cone-rod synaptic disorder syndrome, congenital nonprogressive, is related to non-24-hour sleep-wake syndrome and sleep disorder, and has symptoms including photophobia An important gene associated with Cone-Rod Synaptic Disorder, Congenital Nonprogressive is CABP4 (Calcium Binding Protein 4). Affiliated tissues include heart and brain, and related phenotypes are strabismus and color vision defect