Semin Neurol 2007; 27(3): 221-232
DOI: 10.1055/s-2007-979686
Copyright © 2007 by Thieme Medical Publishers, Inc., 333 Seventh Avenue, New York, NY 10001, USA.

Ischemic Optic Neuropathy

Monica Rodriguez Fontal1 , John B. Kerrison1 , Reinaldo Garcia1 , Veronica Oria1
  • 1Retina and Neuro-Ophthalmology Division, Charleston Neuroscience Institute, Charleston, South Carolina
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Publication History

Publication Date:
18 June 2007 (online)

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ABSTRACT

Ischemic optic neuropathies (IONs) are the most frequent acute optic neuropathy in patients older than 50 years. They are classified according to the location of the ischemic damage into anterior ION and posterior ION. Ischemic optic neuropathies may also be categorized based on the presence or absence of temporal arteritis as an underlying etiology. Anterior ION presents with sudden, painless visual loss developing over hours to days. Examination findings usually include decreased visual acuity, a visual field defect, color vision loss, a relative afferent pupillary defect, and a swollen optic nerve head. Posterior ION occurs in arteritic, nonarteritic, and surgical settings. It is characterized by acute vision loss without initial disc edema but with subsequent optic disc atrophy.

REFERENCES

John B KerrisonM.D. 

Retina and Neuro-Ophthalmology Division, Charleston Neuroscience Institute

3531 Mary Ader Drive, Charleston, SC 29414-5741