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Results for “Color Vision Defects”

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At least 199 records · Page 11Linked to original sources
PubMed1984

Testing of colour vision for vocational purposes.

All red-green defects of colour vision can be effectively screened with a combination of two pseudo- isochromatic tests. Severe (major) colour vision defects regarded as a serious handicap in all occupations needing colour naming ability can be quickly detected with the Panel D-15 dichotomous test. Only a trained ophthalmologist can make the detailed estimation of the type and degree of the colour vision defect with the aid of the anomaloscope and the Farnsworth-Munsell 100-hue test. In the diagnosis of a congenital colour vision defect the exclusion of an eye disease with a consecutive acquired colour vision defect is important.

Color Perception Tests↗
PubMed1975

Ocular manifestations of hypercupremia associated with multiple myeloma.

Extensive copper infiltration of Descemet membrane of the central cornea and of the anterior and posterior surfaces of the lens is associated with marked hypercupremia related to an abnormal immunoglobulin. Observation of this spectrum of ophthalmic changes in an apparently well middle-aged woman heralded the diagnosis of a unique variety of multiple myeloma.

Adult↗
PubMed1977

The Davidson and Hemmendinger color rule as a color vision screening test.

The Davidson and Hemmendinger (DH) color rule was evaluated for color vision screening of normal and congenital color-defective subjects. Ninety-eight normal and 14 color-defective subjects were tested on the color rule under Macbeth illumination of 5,400 K. The color-defective subjects were also tested on the Nagel anomaloscope, the Farnsworth D-15, and the H-R-R pseudoisochromatic plates. The DH color rule performed as accurately as the anomaloscope and was superior to the other two tests in detecting anomalous trichromats and in discriminating protanomalous subjects. The color rule also discriminated dichromats from anomalous trichromats. For severe color-defective subjects (dichromats, achromats), the color rule was more time-consuming than the other tests and discrimination was less certain. Response patterns on the DH color rule and response variability of the different classifications are reported.

Adolescent↗