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February 1937

Polychromatic Plates for Color Sense Examination.

Arch Ophthalmol. 1937;17(2):388. doi:10.1001/archopht.1937.00850020194021

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This series of color-test plates, which was developed by Rabkin, is in accordance with the von Kries classification of disturbances of color perception.

The twenty plates fall into seven distinct groups: (1) those read correctly by both normal trichromats and dichromats; (2) those not read by dichromats; (3) those read in one way by trichromats and in another way by dichromats; (4) those read by normal trichromats and by protanopes but not by deuteranopes ; (5) those read by normal trichromats and by deuteranopes but not by protanopes ; (6) those read differently by protanopes and deuteranopes; (7) those which can be read by all except tritanopes.

As many of the plates contain both numbers and geometric figures, they are suitable for testing both literate and illiterate patients.

The plates are excellently made and should be valuable as an adjunct or as an alternative method in testing patients for abnormalities of color

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