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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 40, Iss. 12 — Dec. 1, 1950
  • pp: 833–841

Tritanopia with Abnormally Heavy Ocular Pigmentation


JOSA, Vol. 40, Issue 12, pp. 833-841 (1950)

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The chromaticity confusions characteristic of tritanopia may be represented on the (x, y)-chromaticity diagram by a family of straight lines intersecting at a copunctal point near the shortwave extreme of the spectrum locus. A case of congenital tritanopia is reported that departs from typical tritanopia, first by having a luminosity function abnormally curtailed on the shortwave end, second by having chromaticity confusions among object colors describable by straight lines on the (x, y)-plot intersecting in an area surrounding the spectrum locus at 460 mµ instead of near the shortwave extreme, and third by confusing incandescent lamp light at a color temperature of 2900°K with the spectrum at 586 mµ instead of the typical tritanopic value of 579 mµ. It has been found that all three of these disagreements with typical tritanopia are to be expected from a tritanope possessing normal macular pigmentation combined with an ocular pigment five times normal. We believe, therefore, that this case of atypical tritanopia departs from typical tritanopia because of abnormally heavy ocular pigmentation.

DEANE B. JUDD, LORENZO PLAZA, and DEAN FARNSWORTH, "Tritanopia with Abnormally Heavy Ocular Pigmentation," J. Opt. Soc. Am. 40, 833-841 (1950)

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  1. H. Köllner, Die Störungen des Farbensinnes (Karger, Berlin, 1912).
  2. D. Farnsworth, J. Opt. Soc. Am. 33, 350 (1943).
  3. A. König, Ueber den menschlichen Sehpurpur und seine Bedeutung für das Sehen (Sitz. Akad. Wiss. Berlin, June, 1894), p. 577; also Gesammelte Abhandlungen (Leipzig, Barth, 1903), p. 338.
  4. E. N. Willmer and W. D. Wright, Nature 156, 119 (1945).
  5. D. Farnsworth and J. D. Reed, Retention of discriminable hue of ten colors at small subtense, Color Vision Report No. 7, Med. Res. Lab., U. S. N. Submarine Base, 20 April 1944.
  6. H. Hartridge, Phil. Trans. Roy. Soc., London (B) 232, 535 (1947); Nature 155, 391, 657 (1945).
  7. W. E. K. Middleton, J. Opt. Soc. Am. 39, 582 (1949).
  8. A. König, Ueber "Blaublindheit," Sitz. Akad. Wiss. Berlin, p. 718 (July 8, 1897); also Gesammelte Abhandlungen, p. 396 (Barth, Leipzig, 1903).
  9. Commission international de l'Éclairage, Proceedings of the 8th Session, Cambridge, England, 19–29 (September, 1931). A. C. Hardy, Handbook of Colorimetry (Technology Press, Cambridge, Massachusetts, 1936). D. B. Judd, J. Opt. Soc. Am. 23, 359 (1933).
  10. D. B. Judd, J. Research Nat. Bureau of Stand. 33, 407 (1944) RP1618; also J. Opt. Soc. Am. 35, 199 (1945).
  11. H. Köllner, Zeits. f. Augenheilk. 19, Ergänzungsheft (1908).
  12. H. Köllner, Zeits. f Augenheilk. 17, 234 (1907).
  13. H. Köllner, Zeits. Sinnesphysiol. 42, 281 (1907).
  14. Collin and W. A. Nagel, Zeits. Sinnesphysiol. 41, 74 (1907).
  15. H. Piper, Zeits. Psychol. 38, 153 (1905).
  16. F. H. G. Pitt, Proc. Roy. Soc. (B) 132, 101 (1944).
  17. G. E. Müller, Darstellung und Erklärung der verschiedenen Typen der Farbenblindhleit (Göttingen, Vandenhoeck, & Ruprecht, 1924), p. 51.
  18. D. B. Judd, J. Research Nat. Bureau of Stand. 42, 1 (1949); RP1946.
  19. S. Alrutz, Psyke 10, 1, 130 (1915).
  20. E. Hering, Pflügers Arch. f. d. ges. Physiol. 57, 308 (1894).
  21. G. Hermann, Ein Beitrag zur Casuislik der Farbenblindheit, Inaug. Diss. (Dorpat, 1882).
  22. D. B. Judd, J. Opt. Soc. Am. 33, 294 (1943).
  23. F. Richardson, Psych. Bull. 8, 55 (1911).
  24. F. Richardson-Robertson, Amer. J. Psych. 34, 157 (1923).
  25. E. Uhry, Beitrag zur Casuistik der Blau-Gelbblindheit, Diss. (Strassburg, 1894).
  26. M. von Vintschgau, Pflügers Arch. f. d. ges. Physiol. 57, 191 (1894).
  27. G. F. Göthlin, Acta Ophthal. 21, 88 (1943).
  28. D. Farnsworth, J. Opt. Soc. Am. 33, 568 (1943).
  29. Dean Farnsworth, Manual of the Farnsworth Dichotomous Test for Color Blindness (The Psychological Corporation, New York, 1947).
  30. G. Wald, Science 101, 653 (June 29, 1945).
  31. E. Ludvigh and E. F. McCarthy, Arch. Ophthal. 20, 37 (July, 1938).
  32. W. C. Granville, D. Nickerson, and C. E. Foss, J. Opt. Soc. Am. 33, 376 (1943).

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