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October 1947


Author Affiliations

New York.
Institute of Ophthalmology, College of Physicians and Surgeons.

Arch Ophthalmol. 1947;38(4):529-531. doi:10.1001/archopht.1947.00900010542010

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To the Editor:  —In an article entitled "Recent Advances in the Physiology of Vision—Part II," published in the British Medical Journal (1:913-916 [June 28] 1947), the author, H. Hartridge, protests against the continued acceptance of the so-called trichromatic theory of color vision, first postulated by Thomas Young. The value of his report to the ophthalmologist, however, will probably lie in the information concerning recent researches on color vision rather than in the arguments for or against any one type of color theory. Hartridge believes that the results of more critical methods of research demand that the three receptor form of theory be abandoned in favor of some polychromatic form. Special reference is made to Granit's work, reviewed by the author in Part I of this report (Brit. M. J.1: 637-639 [April 27] 1946), in which a microelectrode technic was applied to individual nerve fibers of the retina of

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