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References

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  1. L. H. Hardy, G. Rand, and M. C. Rittler, “Tests for the detection and analysis of color-blindness. I. The Ishihara test: An evaluation,” J. Opt. Soc. Am. 35, 268 (1945).
    [Crossref]
  2. See reference 1, 270–272.
  3. For a simple explanation of these terms, see reference 1, page 271; also L. H. Hardy and G. Rand, “Recent developments in color vision testing”,” Am. Acad. Ophth., Outline of Instructional Courses1944. Graduate Lecture Continuous Course No. 6 and 7; L. H. Hardy, G. Rand, and M. C. Rittler, “Color vision and color vision testing,” Arch. Ophth. (in press); D. B. Judd, “Facts of Color-Blindness,” J. Opt. Soc. Am. 33, 294 (1943).
    [Crossref]
  4. L. H. Hardy, G. Rand, and M. C. Rittler, “Tests for the detection and analysis of color-blindness. II. The Ishihara test: Comparison of editions,” J. Opt. Soc. Am. 35, 350 (1945).
    [Crossref]
  5. S. Ishihara, Tests for Colour-Blindness (Kanehara, Tokyo, 1925), fifth edition.
  6. S. Ishihara, Tests for Colour-Blindness (Kanehara, Tokyo, 1936), seventh edition.
  7. S. Ishihara, Tests for Colour-Blindness (reprinted, H. K. Lewis and Company, London, 1943), ninth edition.
  8. American Optical Company, Pseudo-Isochromatic Plates for Testing Color Perception (Beck Engraving Company, Philadelphia and New York, 1940).
  9. L. H. Hardy, “Standard illuminants in relation to color-testing procedures,” Arch. Opthal. 34, 278 (1945).
    [Crossref]

1945 (3)

Hardy, L. H.

Ishihara, S.

S. Ishihara, Tests for Colour-Blindness (Kanehara, Tokyo, 1925), fifth edition.

S. Ishihara, Tests for Colour-Blindness (Kanehara, Tokyo, 1936), seventh edition.

S. Ishihara, Tests for Colour-Blindness (reprinted, H. K. Lewis and Company, London, 1943), ninth edition.

Rand, G.

Rittler, M. C.

Arch. Opthal. (1)

L. H. Hardy, “Standard illuminants in relation to color-testing procedures,” Arch. Opthal. 34, 278 (1945).
[Crossref]

J. Opt. Soc. Am. (2)

Other (6)

S. Ishihara, Tests for Colour-Blindness (Kanehara, Tokyo, 1925), fifth edition.

S. Ishihara, Tests for Colour-Blindness (Kanehara, Tokyo, 1936), seventh edition.

S. Ishihara, Tests for Colour-Blindness (reprinted, H. K. Lewis and Company, London, 1943), ninth edition.

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

See reference 1, 270–272.

For a simple explanation of these terms, see reference 1, page 271; also L. H. Hardy and G. Rand, “Recent developments in color vision testing”,” Am. Acad. Ophth., Outline of Instructional Courses1944. Graduate Lecture Continuous Course No. 6 and 7; L. H. Hardy, G. Rand, and M. C. Rittler, “Color vision and color vision testing,” Arch. Ophth. (in press); D. B. Judd, “Facts of Color-Blindness,” J. Opt. Soc. Am. 33, 294 (1943).
[Crossref]

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Tables (3)

Tables Icon

Table I Effect of quality of illumination on responses to the individual plates. Percentage of each type of color defective subjects passing each plate of the Ishihara test, editions 5, 7, and 9 (British reprint), and the Ishihara plates in the American Optical Company’s test, when the test is administered under daylight and under tungsten light. Each plate is designated by series number and plate number as it appears in the edition under consideration.

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Table II Effect of quality of illumination on performance scores on the Ishihara test, showing for each type of color defective subjects (a) the average performance score achieved by each group; (b) the median or middle score for each group; and (c) the range of scores from lowest to highest achieved by the individuals within each group, when the test was administered under daylight and under tungsten light. Performance score is percentage of the plates to which correct responses were given.

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Table III Effect of quality of illumination on the differential classification of deuteranopia and protanopia, deuteranomaly and protanomaly. Analysis of the value of the plates of Series 6 of the 5th, 7th, and 9th (British reprint) editions of the Ishihara test as a means of differentiating between types of red-green defect, when the test is administered under daylight and under tungsten light.