title: Some ischemic changes that cause primary optic atrophy.
mesh_terms: D001766:Blindness / Q000209:etiology; D001932:Brain Neoplasms / Q000175:diagnosis; D003937:Diagnosis, Differential; D006801:Humans; D002537:Intracranial Arteriosclerosis / Q000150:complications* / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D009460:Neurologic Examination; D009884:Ophthalmodynamometry; D009896:Optic Atrophy / Q000209:etiology*; D009900:Optic Nerve / Q000098:blood supply; D012171:Retinal Vessels