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Multiple Sclerosis Luminance Threshold and Measurements of Temporal Characteristics of Vision
Victor H. Patterson, MB, MRCP;
David H. Foster, PhD;
James R. Heron, MB, FRCP;
Robert J. Mason
Arch Neurol. 1981;38(11):687-689.
Abstract
• Luminance threshold, perceptual latency, double-flash resolution, and critical flicker frequency were examined in patients with multiple sclerosis (MS) and in normal control subjects. The intensities of the stimuli used to test the temporal properties of vision were equalized with respect to individual luminance thresholds. In eight patients with MS, all the properties tested showed abnormality, double-flash resolution being most commonly affected. Retinal sites were not, however, uniformly abnormal according to these measures. We conclude that abnormal temporal properties of vision in patients with MS are not a simple functional consequence of altered luminance thresholds.
Author Affiliations
From the Department of Neurology (Drs Patterson and Heron), North Staffordshire Hospital Centre, Stoke-on-Trent; and the Departments of Communication and Neuroscience (Dr Foster and Mr Mason) and Postgraduate Medicine (Dr Heron and Mr Mason), University of Keele, Staffordshire, England.
Footnotes
Accepted for publication March 8, 1981.
Reprint requests to Department of Neurology, North Staffordshire Hospital Centre, Stoke-on-Trent ST4 7LN, England (Dr Heron).
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