Online color blindness tests may give people an idea of whether they may be color blind and if so, which type of color blindness they might have. This information comes from the National Eye Institute ...

Our ability to see with color vision depends on the presence and function of light-sensing pigments in the cones of our eyes. Color blindness, or color vision deficiency, happens when one or more of ...

You’ve never seen these ones before! You might have taken color blindness tests with numbers online or when getting your eyes ...

Tests with Ishihara's plates [6] showed that only 1 of 120 males belonging to two populations of Brazilian Cayapo Indians was color-blind (deuterodefective). This characteristic was not observed among ...