Non-arteritic anterior ischemic optic neuropathy

Last revised by Yahya Baba ◉ on 26 Apr 2022

Citation, DOI, disclosures and article data

Citation:

Weerakkody Y, Baba Y, Bell D, et al. Non-arteritic anterior ischemic optic neuropathy. Reference article, Radiopaedia.org (Accessed on 22 Mar 2023) https://doi.org/10.53347/rID-99227

DOI:

https://doi.org/10.53347/rID-99227

Permalink:

https://radiopaedia.org/articles/99227

rID:

99227

Article created:

23 Apr 2022, Yuranga Weerakkody ◉

Disclosures:

At the time the article was created Yuranga Weerakkody had no recorded disclosures.

View Yuranga Weerakkody's current disclosures

Last revised:

26 Apr 2022, Yahya Baba ◉

Disclosures:

At the time the article was last revised Yahya Baba had no financial relationships to ineligible companies to disclose.

View Yahya Baba's current disclosures

Revisions:

5 times, by 4 contributors - see full revision history and disclosures

Systems:

Central Nervous System, Head & Neck

Synonyms:

Non anterior ischaemic optic neuropathy (NAION)

Non-arteritic anterior ischemic optic neuropathy (NAION) is a form of ischemic optic neuropathy.

Epidemiology

It is considered the most common acute optic neuropathy in patients over 50 years of age (especially in those with vasculopathy risk factors (e.g. diabetes mellitus, hypertension, and obstructive sleep apnea).

Pathology

The condition is thought to be caused by infarction of the laminar or retrolaminar portions of the optic nerve head supplied by the short posterior ciliary arteries (SPCAs).