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A Test for Detecting, Classifying, and Estimating the Degree of Defective Color Vision

GERTRUDE RAND, Ph.D.; M. CATHERINE RITTLER, A.B.

AMA Arch Ophthalmol. 1956;56(5):736-742.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

The AO H-R-R (Hardy-Rand-Rittler) Pseudoisochromatic Plates¹ present for general use a comprehensive, inexpensive, and rapid test of color vision suitable for office, school, and clinic—a test which should be of considerable practical value. The principles underlying the test and its unique features have been described in previous papers published in the ARCHIVES² under the title "The H-R-R Polychromatic Plates." The present paper is a brief report on our evaluation of the H-R-R Plates as made commercially available by the American Optical Company. The report will deal only with the test as a device for analyzing red-green vision, since the number of subjects who have made errors in the blue-yellow series of plates is too small to warrant conclusions as to the value of the plates of this series.

In the previous paper an evaluation was given of the H-R-R Polychromatic Plates (hereafter to be referred to as the . . . [Full Text PDF of this Article]

Author Affiliations
New York

Knapp Memorial Laboratory of Physiological Optics, the Institute of Ophthalmology of Presbyterian Hospital, and the Department of Ophthalmology of the College of Physicians and Surgeons of Columbia University.

Footnotes
Received for publication May 18, 1956.

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