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Colour-blindness test

Image details: colour-blindness_test.jpg

Colour-blindness test
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COPYRIGHT This file is ineligible for copyright and therefore in the public domain, because it consists entirely of information that is common property and contains no original authorship.
LICENSINGThis file is ineligible for copyright and therefore in the public domain, because it consists entirely of information that is common property and contains no original authorship. (find out about different licences)
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SOURCEWeb
DESCRIPTIONExample of an Ishihara color test plate. The numeral "74" should be clearly visible to viewers with normal color vision. Viewers with dichromacy or anomalous trichromacy may read it as "21", and viewers with achromatopsia may not see numbers. Must NOT be used for diagnosis of color-blindness. Example of an Ishihara color test plate. The numeral "74" should be clearly visible to viewers with normal color vision. Viewers with dichromacy or anomalous trichromacy may read it as "21", and viewers with achromatopsia may not see numbers. Must NOT be used for diagnosis of color-blindness.
WIDTH600px
HEIGHT600px