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Revista Ecuatoriana de Neurología

On-line version ISSN 2631-2581Print version ISSN 1019-8113


CABRERA-MAQUEDA, José María et al. Nonarteritic ischemic optic neuropathy: an updated review. Rev Ecuat Neurol [online]. 2020, vol.29, n.3, pp.65-73. ISSN 2631-2581.


Nonarteritic anterior ischemic optic neuropathy (NAION) is the most common cause of acute optic nerve injury is the second most common optic neuropathy after glaucoma.


Patients are over the age of 50 years with vascular risk factors. This condition typically presents with acute, painless, monocular loss of vision associated with a variable visual field defect and optic disc edema. NAION is produced by inadequate perfusion of the optic nerved head, supposedly because of nocturnal hypotension and small cup/disk ratio. Diagnosis is mainly clinical and prognosis is generally guarded.


There is no treatment for this condition despite numerous medical and surgical attempts. This article reviews the literature and summarizes current data of proposed treatments.

Keywords : nonarteritic anterior ischemic optic neuropathy; physiopathology; treatment.

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