tritanopia


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Related to tritanopia: deuteranopia, tritanomaly

tritanopia

[‚trīt·ən′ō·pē·ə]
(medicine)
A defect in a third constituent essential for color vision, as in violet blindness.
References in periodicals archive ?
Na Figura 2 sao apresentadas as imagens obtidas atraves do simulador, mostrando como as embalagens sao vistas por individuos portadores de (1) protanopia, (2) deuteranopia e (3) tritanopia.
Na simulacao da tritanopia, por sua vez, nao foram percebidas grandes alteracoes na amostra de cor 1 (matiz vermelho).
The Tibetan study (9) showed 14 (n = 14) cases simple Deuteranomaly, 8 Extreme Deuteranomaly followed by 9 cases of Protanopia, 9 Deuteranopia, 7 Protanomaly, 3 Extreme Protanomaly and 1 case of Tritanopia. The Jordanians (Al Aqtum and Al Qawasmeh (2001) had 8 cases of Deuteranomaly, 4 Deuteranopia, 4 Protanomalia and 3 cases of Protanopia and 4 of deuteranopia.
The prevalence of Deuteranomaly was highest among different male ethnic populations and that of Tritanopia was the lowest.
(21,23) The involvement of the S-cones is also suggested by an increased zone of foveal tritanopia (a tritanopic defect present in normal central vision due to the absence of S-cones) found in some diabetic patients.
Dichromacy is further divided into protanopia, deuteranopia and tritanopia.
Reports of tritanomaly exist, but these were probably describing incomplete tritanopia rather than a distinct genetic disorder.