Patient Portal: Non-Arteritic-Anterior Ischemic Optic Neuropathy (NAION)

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Identifier NOVEL-patient-information-portal-non-arteritic-anterior-ischemic-optic-neuropathy
Title Patient Portal: Non-Arteritic-Anterior Ischemic Optic Neuropathy (NAION)
Creator Arun Sundaram, MD
Affiliation Neuro-Ophthalmologist, University of Toronto
Subject Non-arteritic anterior ischemic optic neuropathy; NAION; NA-AION; Optic nerve; Optic disc; Ophthalmic artery
Description Non-arteritic anterior ischemic optic neuropathy (NAION or NA-AION) is caused by decreased blood flow to the front part of the optic nerve (optic disc). It causes optic nerve swelling and sudden vision loss. NAION typically affects one eye, although the other eye sometimes suffers similar loss months or years later (there is about a 15% risk of second eye involvement within 5 years). Rarely, both eyes may be affected at the same time. The blood supply to the front of the optic nerve comes from small branches off the ophthalmic artery, which comes off of the carotid artery. Loss of the blood supply within those small branches damages the front part of the optic nerve, causing it to swell and resulting in vision loss. The swelling eventually goes away, but part of the optic nerve is permanently damaged.
Date 2023-10
Language eng
Format video/mp4
Type Image/MovingImage
Relation is Part of NANOS Patient Brochures for Patients; NOVEL Patient Portal
Collection Neuro-Ophthalmology Virtual Education Library: NOVEL https://NOVEL.utah.edu
Publisher North American Neuro-Ophthalmology Society
Holding Institution Spencer S. Eccles Health Sciences Library, University of Utah
Rights Management Copyright 2023. For further information regarding the rights to this collection, please visit: https://NOVEL.utah.edu/about/copyright
ARK ark:/87278/s6agmb8e
Setname ehsl_novel_novel
ID 2363086
Reference URL https://collections.lib.utah.edu/ark:/87278/s6agmb8e
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