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November 01, 1988; 38 (11) Articles

Electrophysiology versus psychophysics in the detection of visual loss in pseudotumor cerebri

M. Verplanck, D. I. Kaufman, T. Parsons, S. Yedavally, D. Kokinakis
First published November 1, 1988, DOI: https://doi.org/10.1212/WNL.38.11.1789
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Abstract

This study compared visual evoked potentials (VEP) and contrast sensitivity (CS) as methods of detecting visual loss in 15 women with acute onset of pseudotumor cerebri (PTC). A total of 24 out of 30 eyes (14 of 15 patients) had a visual disturbance. Neuro-ophthalmologic examination demonstrated abnormal Goldmann visual fields in 13 of 30 eyes. CS was abnormal in 18 eyes; VEP was abnormal in five eyes. Nine eyes had visual loss detected by CS only, five by perimetry only, and one had the VEP as the sole abnormality. CS was a valuable adjunct to perimetry in PTC whereas VEP was rarely helpful.

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