color blindness

(redirected from Colour vision deficiencies)
Also found in: Thesaurus, Medical, Encyclopedia.
Related to Colour vision deficiencies: protanopia, total color blindness, Color blind
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.color blindness - genetic inability to distinguish differences in hue
dichromacy, dichromasy, dichromatism, dichromatopsia, dichromia - a deficiency of color vision in which the person can match any given hue by mixing only two other wavelengths of light (as opposed to the three wavelengths needed by people with normal color vision)
monochromacy, monochromasy, monochromatic vision, monochromatism, monochromia - complete color blindness; colors can be differentiated only on the basis of brightness
vision defect, visual defect, visual disorder, visual impairment - impairment of the sense of sight
References in periodicals archive ?
47) It is now known that colour vision deficiencies are genetic in origin (33) but the word "daltonian" is still used to describe individuals with inherited colour vision deficiencies.
Colour vision deficiencies are usually inherited failures to recognise a full spectrum of colours, leading to confusions between groups.
The optometrist is likely to be the health care practitioner who will make the initial diagnosis of a colour vision deficiency In order to screen for colour vision deficiencies, the practitioner must be aware of the correct procedure to carry out the test and how to interpret the results, bearing in mind any limitations of the test that is being used.
Current investigations of acquired colour vision deficiencies often concentrate on the sensitivities of the two chromatic systems and therefore only a red-green vs.
CAREERS closed to those with slight colour vision deficiencies could now be available thanks to a new test.