Intraorbital optic nerve signal hyperintensity on magnetic resonance imaging sequences in perioperative hypotensive ischemic optic neuropathy.

J Neuroophthalmol

Neuro-ophthalmology Section, Midwest Eye Institute and the Department of Ophthalmology, Indiana University Medical Center, Indianapolis, Indiana 46280, USA.

Published: September 2005

A 61-year-old man experienced severe bilateral posterior ischemic optic neuropathy after cardiac bypass surgery. Routine magnetic resonance imaging sequences were normal, but diffusion-weighted and fluid-attenuated inversion recovery (FLAIR) sequences showed abnormal hyperintensity within both intra-orbital optic nerves. This imaging abnormality has not been previously reported in this setting.

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http://dx.doi.org/10.1097/01.wno.0000177295.52468.5bDOI Listing

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