Ischemic optic neuropathies: Current concepts

Ischemic optic neuropathy (ION) is the term ascribed to optic nerve disease that is the result of a transient or permanent interruption of the blood supply to any portion of the optic nerve. Anterior ischemic optic neuropathy (AION) refers to ischemia of the optic nerve head, whereas posterior ische...

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Bibliographic Details
Published in:Annals of the Indian Academy of Neurology 2022-10, Vol.25 (8), p.54-58
Main Authors: Patil, Ajay, Biousse, Valerie, Newman, Nancy
Format: Article
Language:English
Subjects:
arteritic ion
Complications and side effects
disc-at-risk
Ischemia
ischemic optic neuropathy
Neuro-Ophthalmology Supplement
non-arteritic ion
Optic nerve
Optic neuropathy
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Summary:Ischemic optic neuropathy (ION) is the term ascribed to optic nerve disease that is the result of a transient or permanent interruption of the blood supply to any portion of the optic nerve. Anterior ischemic optic neuropathy (AION) refers to ischemia of the optic nerve head, whereas posterior ischemic optic neuropathy (PION) indicates ischemia of the posterior optic nerve. IONs are primarily classified as arteritic ION and non-arteritic ION. A subset of ION that occurs around the time of surgery is termed peri-operative ION. These phenomena will be discussed as distinct entities.
ISSN:0972-2327
1998-3549
DOI:10.4103/aian.aian_533_22