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Anterior Ischemic Optic Neuropathy ( AION )

Anterior Ischemic Optic Neuropathy ( AION )

Anterior Ischemic Optic Neuropathy ( AION ) Infarction of optic nerve head just posterior to lamina cribrosa due to inadequate perfusion by posterior ciliary arteries; results in acute visual loss. 2 forms: arteritic (giant cell arteritis); nonarteritic (ischemic). Findings:decreased color vision and acuity, positive RAPD, VF loss (altitudinal or arcuate defects most common, central scotomas also occur), unilateral optic disc ... Read More »

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