Impairment of high-contrast visual acuit
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Dr. Richard D. Jones; Ivan M. Donaldson; Paul L. Timmings
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Article
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1992
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John Wiley and Sons
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English
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## Abstract Several studies have shown that the visual system is affected in Parkinson's disease (PD) with reduced contrast sensitivity, lowβcontrast acuity, and flicker sensitivity, as well as altered electroretinograms (ERGs) and pattern visual evoked potentials (VEPs). Apparently, however, no st