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155 Possible Causes for Blue yellow, Dyschromatopsia

  • Congenital Stationary Night Blindness

    METHODS: Conventional white-on-white (W-W) perimetry, blue-on-yellow (B-Y) perimetry, and the Farnsworth-Munsell 100-hue test were performed in five patients with CSNB1.[ncbi.nlm.nih.gov] Mild dyschromatopsia is present in some patients but this is primarily a disease of rods.[disorders.eyes.arizona.edu] Dyschromatopsia and loss of central acuity can develop later as the cones eventually become dysfunctional as well but these symptoms are much less severe than those seen in[disorders.eyes.arizona.edu]

  • Birdshot Chorioretinopathy

    They included raised thresholds of dark adaptation, acquired dyschromatopsia, mainly of the blue-yellow type, an electroretinogram with reduced amplitude, increased latency[ncbi.nlm.nih.gov] Although most eyes did not have classifiable defects, 30 eyes (18.8%) had tritan (blue-yellow) defects (88% of eyes with classifiable defects).[ncbi.nlm.nih.gov] Decrease night vision. 2- Dyschromatopsia. Defect in color vision. 3- Metamorphopsia.[webeyeclinic.com]

  • Cystoid Macular Dystrophy

    Colour vision examination reveals a type I red-green defect with concomitant blue-yellow defectiveness; the latter may be caused by the leaking capillaries.[ncbi.nlm.nih.gov] Light/dark ratios are abnormal on EOG testing and mild dyschromatopsia can be demonstrated.[disorders.eyes.arizona.edu] Ocular symptoms include photophobia, nyctalopya, dark adaptation problems, dyschromatopsia, photopsias, and constriction of visual fields.[atlasrleye.com]

  • Achromatopsia

    Blue-yellow color vision defects (also called tritan defects), which are rarer, cause problems with differentiating shades of blue and green and cause difficulty distinguishing[icdlist.com] The syndrome is also present in an incomplete form which is more properly defined as dyschromatopsia. It is estimated to affect 1 in 30,000 live births worldwide.[en.wikipedia.org] It must not be confused with colour vision deficiency (red-green blindness or blue-yellow deficiency).[optik-akademie.com]

  • Central Areolar Choroidal Dystrophy

    Colour vision tests revealed diminished red sensitivity and pseudoprotanomaly in stages I and II and combined red-green and blue-yellow defect in stages III and IV.[ncbi.nlm.nih.gov] The youngest affected was a 12-year-old girl who exhibited decreased vision, a red-green dyschromatopsia, and mild granularity of the macula with a diffuse foveal reflex.[ncbi.nlm.nih.gov] […] subnormal in about half of the cases with stage II-IV Colour vision tests revealed diminished red sensitivity and pseudoprotanomaly in stages I and II and combined red-green and blue-yellow[link.springer.com]

  • Occult Macular Dystrophy

    […] and the good preservation of rod function in the macula may be related to this property.A red-green defect in color vision is found in many patients, although some show a blue-yellow[centrallakesclinic.biz] Mild dyschromatopsia is often present with deficits in both red-green and red-green discrimination but total color blindness has also been reported.[disorders.eyes.arizona.edu] Visual acuity OS remained 20/20, and Ishihara color testing showed absent color vision OD with 1/15 plates and a mild dyschromatopsia OS with 11/15 plates.[healio.com]

  • Ethambutol

    […] disturbances of the red-green antagonistic neurons, it could be demonstrated by measuring transient tritanopia and spectral sensitivity functions that ethambutol also affects the blue-yellow[ncbi.nlm.nih.gov] Dyschromatopsia (earliest feature): Blue-yellow defects, more commonly than red-green defects, may be the initial presentation. 2.[epomedicine.com] The patient also reported dyschromatopsia with difficulty distinguishing brown from green and light blue from pink.[eyerounds.org]

  • Optic Neuropathy

    Dyschromatopsia (earliest feature): Blue-yellow defects, more commonly than red-green defects, may be the initial presentation. 2.[epomedicine.com] Pupillary reflexes were sluggish and severe dyschromatopsia was documented in both eyes (Ishihara plates).[ncbi.nlm.nih.gov] Dyschromatopsia can be the initial symptom in toxic/nutritional optic neuropathies.[emedicine.medscape.com]

  • Chloroquine Retinopathy

    The types of color vision defects were classified as blue-yellow (BY), red-green (RG), or mixed RG and BY (mixed).[ncbi.nlm.nih.gov] .  Symptoms of toxicity include decreased vision and dyschromatopsia.  Macular pigmentary changes can develop into a "salt-andpepper" pattern.  Long-term use can cause[slideshare.net] A desaturated Farnsworth Panel D-15 test may recognize subtle tritan (blue-yellow) defects from acquired maculopa thies and is the best test to run; however, a tritan defect[reviewofoptometry.com]

  • Amelogenesis Imperfecta

    In all three types of DI, the teeth have a variable blue-gray to yellow-brown discoloration that appears opalescent because of the defective, abnormally colored dentin shining[mchoralhealth.org] Color vision is defective and is characterized by some as a form of achromatopsia, perhaps better described as dyschromatopsia.[disorders.eyes.arizona.edu] People with dentinogenesis imperfecta have teeth that are translucent and blue-grey or yellow-brown in color.[healthline.com]

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