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Article
June 1936

A NEW THEORY OF BINOCULAR VISION

Arch Ophthalmol. 1936;15(6):1118. doi:10.1001/archopht.1936.00840180162016

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Abstract

To the Editor:—Dr. Verhoeff infers that I put forward retinal rivalry as the sole factor in stereoscopic vision because of the fact that a pattern composed of the right eye's view of a solid object superimposed on the left eye's view looks flat ; this fact indeed shows that the fusion of the two retinal images is not the cause of the stereoscopic factor. But it does not mean that if the factor of linear perspective or that of aerial perspective were present the perception of depth might not result. Retinal rivalry is one factor but not the only factor.

He remarks on my statement that "if a slide carries a vertical line on one side and a horizontal line on the other, when it is looked at through the stereoscope a cross appears which is indistinguishable from the one that would appear if a cross were drawn on both sides," first,

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