Optic Neuropathy,Ischemic

《英文msh詞典》Optic Neuropathy,Ischemic
[主題詞] Optic Neuropathy,Ischemic
[同義詞] Anterior Ischemic Optic Neuropathy
[同義詞] Ischemic Optic Neuropathy
[同義詞] Optic Nerve Ischemia
[同義詞] Posterior Ischemic Optic Neuropathy
[入口詞] Optic Neuropathy,Anterior Ischemic
[入口詞] Optic Neuropathy,Posterior Ischemic
[入口詞] Ischemia,Optic Nerve
[入口詞] Ischemias,Optic Nerve
[入口詞] Ischemic Optic Neuropathies
[入口詞] Nerve Ischemia,Optic
[入口詞] Nerve Ischemias,Optic
[入口詞] Neuropathies,Ischemic Optic
[入口詞] Neuropathy,Ischemic Optic
[入口詞] Optic Nerve Ischemias
[入口詞] Optic Neuropathies,Ischemic
[中文釋義] 視神經病變,缺血性
[英文釋義] Ischemic injury to the optic nerve which usually affects the optic disk (optic neuropathy,anterior ischemic) and less frequently the retrobulbar portion of the nerve (optic neuropathy,posterior ischemic). The injury results from occlusion of arterial blood supply which may result from TEMPORAL ARTERITIS; ATHEROSCLEROSIS; COLLAGEN DISEASES; EMBOLI; DIABETES MELLITUS; and other conditions. The disease primarily occurs in the sixth decade or later and presents with the sudden onset of painless and usually severe monocular visual loss. Anterior ischemic optic neuropathy also features optic disk edema with microhemorrhages. The optic disk appears normal in posterior ischemic optic neuropathy. (Glaser,Neuro-Ophthalmology,2nd ed,p135)