Visual defects associated with anomalies of the optic discs.
D005654:Fundus Oculi; D006801:Humans; D009887:Ophthalmoscopy; D009897:Optic Chiasm; D009900:Optic Nerve; D010781:Photography; D010859:Pigmentation Disorders / Q000175:diagnosis; D014786:Vision Disorders; D014794:Visual Fields