Drusen of the optic nerve head.
D003937:Diagnosis, Differential; D005128:Eye Diseases / Q000175:diagnosis / Q000235:genetics / Q000473:pathology; D005654:Fundus Oculi; D006651:Histocytochemistry; D006801:Humans; D009900:Optic Nerve / Q000032:analysis* / Q000473:pathology; D010211:Papilledema / Q000175:diagnosis; D014794:Visual Fields