Prognostic value of visual evoked potentials in occipital blindness following basilar artery occlusion

F. A. Abraham, E. Melamed, S. Lavy

Research output: Contribution to journalArticlepeer-review

Abstract

Three patients suffering from sudden occipital blindness following basilar artery occlusion underwent electroretinography and visual evoked potential (VEP) examinations. The VEPs performed early in these patients and repeated later seems to be of prognostic value. Responses of normal shape and amplitude after monocular and binocular stimulation were followed by complete recovery of vision. Unequal and subnormal VEPs obtained following monocular stimulation, and even smaller responses reached after binocular stimulation, accompanied permanent unilateral occipital damage resulting in homonymous hemianopsia. Lack of VEP was proved to be a sign preceding permanent blindness.

Original languageEnglish
Pages (from-to)126-135
Number of pages10
JournalApplied Neurophysiology
Volume38
Issue number2
DOIs
StatePublished - 1975
Externally publishedYes

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