What causes vision loss in giant cell arteritis (GCA) (temporal arteritis)?

Updated: Sep 03, 2020
  • Author: Mythili Seetharaman, MD; Chief Editor: Herbert S Diamond, MD  more...
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Answer

The most common cause of vision loss in GCA is anterior ischemic optic neuropathy (AION). This results from ischemia of the optic nerve head, which is supplied mainly by the posterior ciliary arteries.


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