Pattern-reversal visual evoked potentials in late-onset progressive multiple sclerosis

L. J. Dorfman, K. L. Cummins

Research output: Contribution to journalArticlepeer-review


This report describes five cases of presumed progressive multiple sclerosis (MS) of late onset, four of them with predominantly or exclusively spinal manifestations, in which abnormal pattern-reversal visual evoked potentials (VEP) showed evidence of subclinical optic nerve involvement despite the absence of visual symptoms and normal neuro-opthalmological examinations. VEP measurement should be included in the evaluation of patients with myelopathy or encephalopathy of unkown etiology.

Original languageEnglish (US)
Pages (from-to)89-94
Number of pages6
JournalElectromyography and Clinical Neurophysiology
Issue number1-2
StatePublished - 1979
Externally publishedYes

ASJC Scopus subject areas

  • Physiology
  • Clinical Neurology
  • Physiology (medical)

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