The objective assessment of visual contrast sensitivity by pattern reversal visual evoked potentials in diabetes

V. Martinelli, M. Lacerenza, M. Merenda, F. Meschi, L. Somazzi, G. Comi

Research output: Contribution to journalArticle

Abstract

Recent studies have described abnormalities of visual evoked potentials and pattern electroretinography in diabetics without retinopathy. The visual contrast sensitivity, determined by psychophysical tests, has proved to be abnormal in diabetic patients with and without clinical retinopathy. In this study we evaluated contrast sensitivity function using both electrophysiologic and psychophysical methods. The objective assessment of functional visual contrast sensitivity was superior to psychophysical evaluation in the detection of contrast sensitivity alterations. No relationships were found between contrast sensitivity dysfunction and abnormalities of pattern electroretinography or fluorescein angiography. Our data suggest that functional visual deficits might precede background retinopathy and that the involvement of foveal function is early and very frequent in diabetic patients, even if they have normal visual acuity.

Original languageEnglish
Pages (from-to)44-46
Number of pages3
JournalJournal of Diabetic Complications
Volume2
Issue number1
DOIs
Publication statusPublished - 1988

ASJC Scopus subject areas

  • Endocrinology
  • Endocrinology, Diabetes and Metabolism
  • Internal Medicine

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