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Visual evoked responses in diabetes.

K S Millingen1, P T Yeo, S Kamaldeen

  • 1Department of Medicine, University of Tasmania.

Clinical and Experimental Neurology
|January 1, 1987
PubMed
Summary
This summary is machine-generated.

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This study found that pattern reversal visual evoked responses (VERs) are rarely prolonged in diabetes patients. Prolonged VERs were mostly linked to other conditions, not solely diabetes.

Area of Science:

  • Ophthalmology
  • Neuroscience
  • Endocrinology

Background:

  • Conflicting evidence exists regarding visual evoked responses (VERs) prolongation in diabetic patients.
  • Diabetic complications can affect the visual system, but the extent of optic nerve involvement is debated.

Purpose of the Study:

  • To investigate pattern reversal VERs in diabetic inpatients.
  • To clarify the relationship between diabetes, visual pathway function, and VER abnormalities.

Main Methods:

  • Sixty diabetic inpatients underwent pattern reversal VER testing.
  • Data analysis focused on latency and amplitude of VERs.

Main Results:

  • Only one patient showed unequivocally delayed VERs without other explanations.

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  • Two patients had prolonged VERs associated with proliferative retinopathy, potentially due to maculo-papillary fiber involvement.
  • The study did not strongly support widespread optic neuropathy or central encephalopathy in diabetes via VERs.

    • Conclusions:

    • Pattern reversal VERs are generally not prolonged in diabetes.
    • Overt visual pathway dysfunction in diabetes, detectable by VERs, is uncommon.
    • Further research may be needed to explore subtle visual system changes in diabetes.