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Related Experiment Videos

Visual field abnormalities in multiple sclerosis

V H Patterson, J R Heron

    Journal of Neurology, Neurosurgery, and Psychiatry
    |March 1, 1980
    PubMed
    Summary
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    Tangent screen examination effectively detects visual pathway damage in multiple sclerosis (MS) and optic neuritis (ON), even in patients without prior visual symptoms. This method is a reliable diagnostic tool for MS-related visual impairment.

    Area of Science:

    • Ophthalmology
    • Neurology
    • Neuroscience

    Background:

    • Multiple sclerosis (MS) and optic neuritis (ON) frequently cause visual pathway dysfunction.
    • Assessing visual field defects is crucial for diagnosing and monitoring MS progression.

    Purpose of the Study:

    • To evaluate the diagnostic utility of tangent screen examination for detecting visual pathway involvement in patients with MS or ON.
    • To determine the prevalence of visual field abnormalities in different MS classifications.

    Main Methods:

    • Visual fields were assessed using tangent screen perimetry in 54 patients diagnosed with MS or ON.
    • Patients were categorized into definite, probable, and possible MS groups.

    Main Results:

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  • All patients with definite MS exhibited abnormal visual fields.
  • Abnormalities were found in 94% of probable MS and 81% of possible MS cases.
  • Arcuate scotoma was the most common visual field defect identified, and three-quarters of MS patients with no prior visual symptoms showed abnormalities.

    • Conclusions:

    • Tangent screen examination is a sensitive and effective method for diagnosing visual pathway involvement in MS.
    • This technique offers a favorable comparison to more complex diagnostic approaches for MS-related visual disturbances.