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Related Experiment Videos

Colour vision abnormalities in multiple sclerosis.

A C Harrison1, W J Becker, W K Stell

  • 1Lions Sight Center, Faculty of Medicine, University of Calgary, Canada.

The Canadian Journal of Neurological Sciences. Le Journal Canadien Des Sciences Neurologiques
|August 1, 1987
PubMed
Summary
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Color vision deficits are common in multiple sclerosis (MS) patients, affecting over half of those tested. These visual impairments can occur even without other signs of optic nerve damage.

Area of Science:

  • Ophthalmology
  • Neurology
  • Clinical Vision Science

Background:

  • Multiple sclerosis (MS) is a demyelinating disease affecting the central nervous system.
  • Visual pathway involvement is common in MS, but subtle deficits may be overlooked.
  • Comprehensive assessment of visual function is crucial for understanding MS progression.

Purpose of the Study:

  • To investigate the prevalence and characteristics of color vision deficits in patients with multiple sclerosis (MS).
  • To determine if color vision abnormalities correlate with other neurological or visual evoked potential (VEP) findings in MS.
  • To assess the utility of color vision testing as a diagnostic tool for MS patients.

Main Methods:

  • A cohort of MS patients underwent a battery of color vision tests, including Ishihara plates and the FM 100-Hue test.

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  • Visual evoked potential (VEP) latency was assessed in conjunction with color vision testing.
  • Data were analyzed to identify correlations between color vision deficits and clinical/electrophysiological findings.

    • Main Results:

    • Color vision deficits were identified in 45% of patients using Ishihara plates and 42.5% using the FM 100-Hue test.
    • A significant proportion (65%) of MS patients failed at least one color vision test.
    • Color vision deficits were observed independently of optic neuritis or VEP abnormalities, with no significant correlation between VEP latency and color vision impairment.

    Conclusions:

    • Color vision testing is a valuable tool for detecting visual system involvement in MS patients.
    • Subtle color vision deficits are prevalent in MS and may not be associated with overt optic nerve damage or VEP abnormalities.
    • Routine color vision assessment should be considered in the comprehensive evaluation of MS patients, even in the absence of other visual symptoms.