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; EMBOLISM; 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)

Descriptor ID	D018917
MeSH Number(s)	C10.292.700.600 C11.640.643 C14.907.601
Concept/Terms	Optic Neuropathy, Ischemic Optic Neuropathy, Ischemic Ischemic Optic Neuropathy Ischemic Optic Neuropathies Neuropathies, Ischemic Optic Neuropathy, Ischemic Optic Optic Neuropathies, Ischemic Optic Nerve Ischemia Ischemia, Optic Nerve Ischemias, Optic Nerve Nerve Ischemia, Optic Nerve Ischemias, Optic Optic Nerve Ischemias Posterior Ischemic Optic Neuropathy Posterior Ischemic Optic Neuropathy Optic Neuropathy, Posterior Ischemic Anterior Ischemic Optic Neuropathy Anterior Ischemic Optic Neuropathy Optic Neuropathy, Anterior Ischemic

Below are MeSH descriptors whose meaning is more general than "Optic Neuropathy, Ischemic".

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Below are MeSH descriptors whose meaning is more specific than "Optic Neuropathy, Ischemic".