anomalous trichromasy

Dictionary of Hallucinations. . 2010.

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  • anomalous trichromatism —    Also known as anomalous trichromasy. Both terms are used to denote those types of colour vision deficiency in which one of the retinal cones malfunctions in such a way that the resulting deficiency is relative rather than absolute in nature.… …   Dictionary of Hallucinations

  • protanomaly — A deficiency of color perception in which the red sensitive pigment in cones is decreased. [G. protos, first, + anomalia, anomaly] * * * prot·anom·a·ly ə lē n, pl lies deficient color vision in which an abnormally large proportion of red is… …   Medical dictionary

  • tritanomaly — A type of partial color deficiency due to a deficiency or abnormality of blue sensitive retinal cones. [G. tritos, third, + anomalia, irregularity] * * * tri·ta·nom·a·ly (tri″tə nomґə le) [Gr. tritos third + anomaly] a very rare… …   Medical dictionary

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