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Nonarteritic Ischemic Optic Neuropathy 

Nonarteritic Ischemic Optic Neuropathy
Nonarteritic Ischemic Optic Neuropathy

Matthew J. Thurtell

, and Robert L. Tomsak

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date: 01 August 2021

Nonarteritic anterior ischemic optic neuropathy is the most frequent cause of acute-onset optic neuropathy in older adults. Its exact pathogenesis remains uncertain, although it often occurs in patients with a small, structurally congested optic disc (“disc at risk”). In this chapter, we begin by reviewing the clinical features of nonarteritic anterior ischemic optic neuropathy. We then discuss the prognosis for recovery of vision and fellow eye involvement. We review the risk factors and precipitating factors for this condition. We list the medications that have been associated with this condition. Lastly, we review the workup and management approach for this common condition.

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