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Optom Vis Sci. 1989 Mar;66(3):181-90.

Review of dichoptic color mixing.

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  • 1School of Optometry, University of Waterloo, Ontario, Canada.


Dichoptic color mixing has been a controversial issue for nearly two centuries. The first dispute arose from the fact that dichoptic color mixtures occur only under certain conditions. A later controversy arose over the implications of dichoptic color mixtures to color vision theories. The present consensus is that dichoptic color mixtures occur under conditions which apparently minimize chromatic differences between the two monocular impressions. However, dichoptic mixtures do not match the corresponding monoptic mixtures. Dichoptic mixtures appear dimmer, and if a green light is mixed with either a red or violet light, then the dichoptic mixture appears greener relative to the monoptic mixture.

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