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Eur J Intern Med. 2005 Oct;16(6):447-8.

Optic neuropathy in vitamin B12 deficiency.

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1
Department of Ophthalmology, Cole Eye Institute/Desk I-32, Cleveland Clinic Foundation, 9500 Euclid Avenue, Cleveland, OH 44195, USA.

Abstract

There are many neurological manifestations of vitamin B(12) deficiency. Optic neuropathy is a rare, but important, manifestation of vitamin B(12) deficiency that should be suspected in patients with risk factors for malnutrition. We present a case of a 68-year-old male who presented with bilateral decreased central vision for months and was found to have a low vitamin B(12) level. After a few months, his vision improved with parenteral vitamin B(12) supplementation. Vitamin B(12) optic neuropathy is a reversible, treatable cause of vision loss and may be a harbinger for other manifestations of the disease.

PMID:
16198909
DOI:
10.1016/j.ejim.2005.01.021
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