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Tritanopia

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Encyclopedia of Color Science and Technology

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Synonyms

Autosomal dominant inherited color vision deficiency; “Blue-blindness”; Blue-yellow deficiency; Color blindness; Color vision abnormality; Dichromacy.

Definition

Tritanopia (from the Greek tritos: third + an: not + opia: a visual condition) is a congenital form of severe color deficiency (dichromacy) affecting the blue-yellow opponent color system. Tritanopes do not distinguish between colors along a specific direction in color space (tritanopic confusion lines) and are able to match all colors using two primaries (unlike trichromats who require three primaries). Tritanopia follows a dominant pedigree pattern and is linked to chromosome 7, where damage to the gene encoding the photopigment opsin results in the absence of functioning S-cones, cone cells containing the short-wavelength (S-) photopigment. Tritanopia is rare, not sex-linked, with great uncertainty as to its incidence, although some estimates place this at 1 in 13,000 or fewer in the Caucasian population. The...

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References

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Author information

Authors and Affiliations

  1. School of Psychology, Massey University, Palmerston North, New Zealand

    David L. Bimler

  2. Department of Psychology, Liverpool Hope University, Liverpool, UK

    Galina V. Paramei

Authors
  1. David L. Bimler
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  2. Galina V. Paramei
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Corresponding author

Correspondence to David L. Bimler .

Editor information

Editors and Affiliations

  1. Color Science & Imaging Lab, North Carolina State Univ, Raleigh, NC, USA

    Renzo Shamey

Section Editor information

  1. Color research & application, Pennsville, NJ, USA

    Rolf Kuehni

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Bimler, D.L., Paramei, G.V. (2019). Tritanopia. In: Shamey, R. (eds) Encyclopedia of Color Science and Technology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-27851-8_286-2

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  • DOI: https://doi.org/10.1007/978-3-642-27851-8_286-2

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  • Print ISBN: 978-3-642-27851-8

  • Online ISBN: 978-3-642-27851-8

  • eBook Packages: Springer Reference Physics and AstronomyReference Module Physical and Materials ScienceReference Module Chemistry, Materials and Physics

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Chapter history

  1. Latest

    Tritanopia
    Published:
    26 September 2019

    DOI: https://doi.org/10.1007/978-3-642-27851-8_286-2

  2. Original

    Tritanopia
    Published:
    14 July 2015

    DOI: https://doi.org/10.1007/978-3-642-27851-8_286-1

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