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183 Possible Causes for Color Vision Disturbance in Protan, Deutan, and Tritan Axes

Did you mean: Color Vision Disturbance, in Protan, Deutan, and Tritan Axes

  • Leber Congenital Amaurosis

    Color discrimination along the protan and deutan axes was evident but reduced in six of seven subjects. Four of seven subjects were unable to read any of the HRR plates.[ncbi.nlm.nih.gov] Color discrimination along the protan and deutan axes was evident but reduced in six of seven subjects. Four of seven subjects were unable to read any of the HRR plates.[ncbi.nlm.nih.gov] Results: The Trivector version of the tests demonstrated that color discrimination along the tritan axis was undetectable in four subjects, and severely reduced in three subjects[ncbi.nlm.nih.gov]

  • Blue Cone Monochromatism

    The study patients consistently made errors oriented along the protan and deutan axes but they made none along the tritan axis.[ncbi.nlm.nih.gov] Affected males were shown to fail the protan and deutan axes, but retained good discrimination on the tritan axis of the MR test, a compelling evidence for residual colour[ncbi.nlm.nih.gov] The study patients consistently made errors oriented along the protan and deutan axes but they made none along the tritan axis.[ncbi.nlm.nih.gov]

    Missing: Color Vision Disturbance in Protan
  • Autosomal Dominant Optic Atrophy

    Chromatic thresholds along the protan, deutan, and tritan axes were 8, 9, and 14 times higher than normal, respectively, with losses increasing with age and S-cone temporal[ncbi.nlm.nih.gov] RESULTS: Chromatic thresholds were significantly increased for protan, deutan and tritan axes (p CONCLUSIONS: In the ADOA model of ganglion cell damage, parvo-, konio- and[ncbi.nlm.nih.gov] Unlike autosomal dominant optic atrophy without hearing loss, it appears to be associated with a red-green (deutan) defect in color vision.[ncbi.nlm.nih.gov]

    Missing: Color Vision Disturbance in Protan
  • Visual Impairment

    Both "protans" and "deutans" (of which the deutans are by far the most common) are known as "red–green color-blind".[en.wikipedia.org] Tritanopia is a very rare color vision disturbance in which only the red and the green cone pigments are present, with a total absence of blue retinal receptors.[en.wikipedia.org] People in whom deuteranopia or deuteranomaly manifest are sometimes referred to as deutans, those with protanopia or protanomaly as protans.Since deuteranomaly is by far the[en.wikipedia.org]

    Missing: and Tritan Axes
  • Achromatopsia

    The dotted lines labeled Protan, Deutan, and Tritan refer to the cone excitation axes of the L, M, and S cones, respectively.[doi.org] […] color discrimination along all three axes of color vision corresponding to the three cone classes  (1) the protan or long-wavelength- sensitive cone axis (red)  (2) the deutan[slideshare.net] NH's sensitivity is similar to that of AH along the deutan and protan axes but is significantly poorer along the tritan axis, consistent with her performance on the panel[doi.org]

    Missing: Color Vision Disturbance in Protan
  • Cystoid Macular Dystrophy

    […] early adulthood • Progressive early loss of colour vision, day blindness/photophobia • Nystagmus is common • Colour vision abnormalities present early - usually all colour axes[quizlet.com] OPA3Optic atrophy 3 with cataract,165300 OPN1LWBlue cone monochromacy,303700 OPN1LWColorblindness, protan,303900 OPN1MWBlue cone monochromacy,303700 OPN1MWColorblindness, deutan[qgenomics.com] […] affected (tritan defect) • Bull's eye appearance in late cases • Pure PCD will have reduced cone responses but normal rod function • Proportion of PCD will progress to cone-rod[quizlet.com]

    Missing: Color Vision Disturbance in Protan
  • Tritanopia

    Dean et al 34 used a CRT based chromatic contrast sensitivity test to investigate change in protan and tritan axes in a group of diabetic subjects before and after breathing[bjo.bmj.com] Blue-Weak (Tritanomaly) Image Courtesy of Clinic Compare Deuteranopia Deutan color vision deficiencies are the most common forms of color blindness.[medicaldaily.com] People who are protans (red weak) and deutans (green weak) comprise 99% of this group. An unusual type of colorblindness occurs in the mind, not the eye.[webexhibits.org]

    Missing: Color Vision Disturbance in Protan
  • Diabetic Cataract

    Diabetes mellitus is a significant risk factor for the development of cataracts, the second most common ocular complication in this patient population. Various visual disturbances may be noted in diabetic cataract, and the diagnosis requires a slit-lamp examination. Cataracts are considered to be one of the earliest[…][symptoma.com]

    Missing: Deutan and Tritan Axes
  • Cataract

    August 26, 1992 JAMA. 1992;268(8):989-993. doi:10.1001/jama.1992.03490080063025 Objective. —To examine the association between cigarette smoking and the incidence of cataract. Design, Setting, and Participants. —The design was a prospective cohort study using data from the Physicians' Health Study, a randomized trial[…][doi.org]

    Missing: Deutan and Tritan Axes
  • Radiation-induced Cataract

    BACKGROUND: Opacification of the ocular lens is an important effect of exposure to ionizing radiation. Astronauts and cosmonauts are exposed to relatively high doses of all types of radiation in space, including high-energy particle radiation. A study was initiated to examine the lenses of the eyes of[…][ncbi.nlm.nih.gov]

    Missing: Deutan and Tritan Axes

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