Ischemic Optic Neuropathy

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)

Also Known As:

Anterior Ischemic Optic Neuropathy; Posterior Ischemic Optic Neuropathy; Optic Neuropathy, Ischemic; Optic Neuropathy, Anterior Ischemic; Optic Neuropathy, Posterior Ischemic; Ischaemic Neuropathy, Optic; Ischemia, Optic Nerve; Ischemic Neuropathy, Optic; Ischemic Optic Neuropathies; Nerve Ischemia, Optic; Neuropathy, Ischemic Optic; Neuropathy, Optic Ischaemic; Neuropathy, Optic Ischemic; Optic Ischaemic Neuropathies; Optic Ischemic Neuropathies; Optic Nerve Ischemias; NAION; Nonarteritic Anterior Ischemic Optic Neuropathy; Optic Ischaemic Neuropathy; Optic Ischemic Neuropathy; Optic Nerve Ischemia

Nervous System Diseases: 14178
- Cranial Nerve Diseases: 554
  - Optic Nerve Diseases: 2663
    - Ischemic Optic Neuropathy: 1025
Eye Diseases: 3522
- Optic Nerve Diseases: 2663
  - Ischemic Optic Neuropathy: 1025
Cardiovascular Diseases: 91362
- Vascular Diseases: 15138
  - Ischemic Optic Neuropathy: 1025

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