Color blind glasses
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Color blind glasses or color correcting lenses are light filters, usually in the form of glasses or contact lenses, that attempt to alleviate color blindness, by bringing deficient color vision closer
Google Glass has been used with daltonization filters to create a sort of "active" color correcting lens
Color vision test
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A color vision test is used for measuring color vision against a standard. These tests are most often used to diagnose color vision deficiencies, though several of the standards are designed to catego
Color blind glasses
…use of color in safety systems excludes the color blind from many occupations. Screening for color blindness in these occupations is accomplished with color vision tests, often the Ishihara test. There is no cure for color blindness, but management of color vision may be possible with apps or color correcting lenses…
An Ishihara test image as seen by subjects with normal color vision and by those with a variety of color deficiencies
A Farnsworth–Munsell 100 Hue Test