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Science 10 December 1976:
Vol. 194. no. 4270, pp. 1183 - 1185
DOI: 10.1126/science.996550
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Articles

Science, Vol 194, Issue 4270, 1183-1185
Copyright © 1976 by American Association for the Advancement of Science

articles

Cones survive rods in the light-damaged eye of the albino rat

CM Cicerone

Exposure to constant light causes extensive rod photoreceptor damage but spares the photopic system in albino rats. The rod branch of the dark-adaptation curve shows considerable elevation in threshold; the cone branch is hardly affected. Longer exposure and chromatic adaptation suggest that there are three cone mechanisms with peaks near wavelengths of 450,520, and 560 nanometers.


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