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Am J Optom Physiol Opt. 1983 Aug;60(8):667-72.

Macular pigment difference spectrum from sensitivity measures of a single cone mechanism.

Abstract

We have obtained the difference spectrum for the macular pigment by comparing the spectral sensitivity of the "green-sensitive" or G cone mechanism in the foveal and parafoveal region. The method overcomes objections to previous attempts to obtain a difference spectrum from the spectral sensitivities by isolating a single receptor mechanism; it also provides a relatively easy approach for obtaining a reliable measure of the optical density of the macular pigment for individual subjects. Our results using this method suggest a higher optical density for the macular pigment than that obtained from data where more than one cone type influenced the difference spectrum.

PMID:
6624865
[PubMed - indexed for MEDLINE]
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