Abstract

The Ishihara test for color-blindness, taken as a representative type of polychromatic tests, fails to give more than a superficial evaluation of the state of an observer’s color vision. It can be utilized as a good rough screening test for red-green color blindness, but in so doing most of the plates could be discarded. The results obtained are dependent to a large extent upon the illuminant used, and this fact militates against the deuteranomalous observer. The test gives neither an adequate qualitative (type of defect) nor quantitative (extent of defect) diagnosis, and may give a wrong diagnosis. Results obtained by this test should be discounted unless verified by other modern types of tests.

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References

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  1. Ishihara, S., Tests for Colour-Blindness (Handaya, Tokyo, Hongo Harukicho, 1917).
  2. Clark, J. H., "The Ishihara test for color blindness," Am. J. Physiol. Opt. 5, 269–276 (July, 1924).
  3. von Kries, J. "Ueber Farbensysteme," Zeits. f. Psychol. u. Physiol. d. Sinn. 13, 241–324 (1897).
  4. Ishihara, S., Tests for Colour-Blindness (Tokyo, Kanehara, 1925), 5th Ed.
  5. Rabkin, E., Polychromatic Plates for Testing Colour Vision (Kharkov, State Medical Publishing House of the USSR, 1939), 2nd Ed.
  6. American Optical Company, Pseudo-Isochromatic Plates for Testing Color Perception (Beck Engraving Company, Philadelphia and New York, 1940).
  7. Farnsworth, D., "Farnsworth-Munsell 100-hue and dichotomous tests," J. Opt. Soc. Am. 33, 568–578 (1943).
  8. Hardy, L. H., "Single judgment test for red-green discrimination," J. Opt. Soc. Am. 33, 512–514 (1943).
  9. Nagel, W. A., "Zwei Apparate für die augenärztliche Funktionsprüfung. Adaptometer und kleines Spektralphotometer (Anomaloskop), Zeits. f. Augenheilk. 17, 201–222 (1907).

1943 (2)

1907 (1)

Nagel, W. A., "Zwei Apparate für die augenärztliche Funktionsprüfung. Adaptometer und kleines Spektralphotometer (Anomaloskop), Zeits. f. Augenheilk. 17, 201–222 (1907).

1897 (1)

von Kries, J. "Ueber Farbensysteme," Zeits. f. Psychol. u. Physiol. d. Sinn. 13, 241–324 (1897).

Farnsworth, D.

Hardy, L. H.

Ishihara, S.

Ishihara, S., Tests for Colour-Blindness (Tokyo, Kanehara, 1925), 5th Ed.

Nagel, W. A.

Nagel, W. A., "Zwei Apparate für die augenärztliche Funktionsprüfung. Adaptometer und kleines Spektralphotometer (Anomaloskop), Zeits. f. Augenheilk. 17, 201–222 (1907).

Rabkin, E.

Rabkin, E., Polychromatic Plates for Testing Colour Vision (Kharkov, State Medical Publishing House of the USSR, 1939), 2nd Ed.

von Kries, J.

von Kries, J. "Ueber Farbensysteme," Zeits. f. Psychol. u. Physiol. d. Sinn. 13, 241–324 (1897).

Am. J. Physiol. Opt. (1)

Clark, J. H., "The Ishihara test for color blindness," Am. J. Physiol. Opt. 5, 269–276 (July, 1924).

J. Opt. Soc. Am. (2)

Zeits. f. Augenheilk. (1)

Nagel, W. A., "Zwei Apparate für die augenärztliche Funktionsprüfung. Adaptometer und kleines Spektralphotometer (Anomaloskop), Zeits. f. Augenheilk. 17, 201–222 (1907).

Zeits. f. Psychol. u. Physiol. d. Sinn. (1)

von Kries, J. "Ueber Farbensysteme," Zeits. f. Psychol. u. Physiol. d. Sinn. 13, 241–324 (1897).

Other (4)

Ishihara, S., Tests for Colour-Blindness (Tokyo, Kanehara, 1925), 5th Ed.

Rabkin, E., Polychromatic Plates for Testing Colour Vision (Kharkov, State Medical Publishing House of the USSR, 1939), 2nd Ed.

American Optical Company, Pseudo-Isochromatic Plates for Testing Color Perception (Beck Engraving Company, Philadelphia and New York, 1940).

Ishihara, S., Tests for Colour-Blindness (Handaya, Tokyo, Hongo Harukicho, 1917).

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