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Am J Emerg Med. 2018 Oct 2. pii: S0735-6757(18)30811-8. doi: 10.1016/j.ajem.2018.10.001. [Epub ahead of print]

More than meets the eye: Point-of-care ultrasound diagnosis of acute optic neuritis in the emergency department.

Author information

1
Department of Emergency Medicine, Los Angeles County + University of Southern California Medical Center, Los Angeles, CA, United States of America. Electronic address: NoaYee@hawaii.edu.
2
Department of Emergency Medicine, Los Angeles County + University of Southern California Medical Center, Los Angeles, CA, United States of America. Electronic address: saman.kashani@med.usc.edu.
3
Department of Emergency Medicine, Los Angeles County + University of Southern California Medical Center, Los Angeles, CA, United States of America.

Abstract

Optic neuritis (ON) is an inflammatory condition that causes demyelination and thickening of the optic nerve leading to acute/subacute vision loss. It is frequently associated with other conditions like multiple sclerosis, but is often misdiagnosed, which can lead to a suboptimal prognosis. Ultrasound is rarely utilized to help make this diagnosis, even though it can easily detect a thickened retrobulbar optic nerve sheath diameter. We describe four cases in which ultrasonographic measurement of the optic nerve sheath diameter aided in the diagnosis of ON.

PMID:
30314903
DOI:
10.1016/j.ajem.2018.10.001

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