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Science 15 April 1977:
Vol. 196. no. 4287, pp. 333 - 335
DOI: 10.1126/science.403610
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Articles

Science, Vol 196, Issue 4287, 333-335
Copyright © 1977 by American Association for the Advancement of Science

articles

Scotopic vision deficits in young monkeys exposed to lead

PJ Bushnell, RE Bowman, Allen JR, and RJ Marlar

Rhesus monkeys were reared on diets designed to produce blood lead concentrations of 14 (untreated), 55, or 85 micrograms per 100 milliliters for the first year of life. Eighteen months later, blood lead levels were normal in all animals. At this time, however, visual discrimination performance in the 85-microgram group was impaired under dim light relative both to their own performance under bright light and to the performance of the other groups under all light levels used. We interpret these results to reflect a deleterious, enduring impairment of scotopic visual function (night blindness) as a result of early lead intoxication.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Increased ERG a- and b-Wave Amplitudes in 7- to 10-Year-Old Children Resulting from Prenatal Lead Exposure.
S. J. Rothenberg, L. Schnaas, M. Salgado-Valladares, E. Casanueva, A. M. Geller, H. K. Hudnell, and D. A. Fox (2002)
Invest. Ophthalmol. Vis. Sci. 43, 2036-2044
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The Behavioral Effects of Prenatal and Early Postnatal Lead Exposure in the Primate Ma Ca Ca Fascicularis.
D. L. Hopper, W. J. Kernan, and W. E. Lloyd (1986)
Toxicology and Industrial Health 2, 1-16
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Heavy metals affect rod, but not cone, photoreceptors.
D. Fox and A. Sillman (1979)
Science 206, 78-80
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