Large-field trichromacy in protanopes and deuteranopes*
- 1 February 1977
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America
- Vol. 67 (2) , 213-220
- https://doi.org/10.1364/josa.67.000213
Abstract
Protanopes and deuteranopes do not accept the classical dichromatic matches when field size extends to 8° visual angle. Their unique matches of spectral yellow to a mixture of red and green are then mediated by the photoreceptors of small-field dichromacy interacting with a photoreceptor with the spectral sensitivity of rhodopsin. Our data suggest that large-field trichromacy is a general feature of protanopia and deuteranopia.Keywords
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