Anterior ischemic optic neuropathy (AION), is classified as arteritic (giant cell arteritis [GCA]) or nonarteritic AION (NAION). Varicella zoster virus (VZV) vasculopathy causes symptoms and signs of AION.1–4 Because VZV is present in temporal arteries (TAs) of most patients with GCA1,5 and ischemic optic nerve and retinal pathologies,2,3 we examined GCA-negative TAs from seven AION patients for VZV.
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