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  • Title: Visual function in multiple sclerosis.
    Author: Ashworth B, Aspinall PA, Mitchell JD.
    Journal: Doc Ophthalmol; 1989 Nov; 73(3):209-24. PubMed ID: 2638240.
    Abstract:
    126 patients with multiple sclerosis and normal visual acuity were submitted to a battery of tests of visual function. The investigation included visual evoked potential, contrast sensitivity by three methods, and a segment of the Farnsworth-Munsell 100 Hue test. 22 of the patients gave a history of unilateral acute optic neuritis and in these the abnormalities were greater in degree. Contrast sensitivity emerged as the most useful test and was abnormal in 92.2% of eyes. Visual evoked potential was delayed in 35.6% and colour vision was abnormal in less than a third. In general, contrast sensitivity was depressed at all frequencies and most of the abnormalities could be identified by testing at a single frequency of 4 cycles/degree.
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