A series of color swatches are laid in front of you – each swatch a different color. A researcher asks you which one is red, and you pick the one you believe is red. You then repeat the name game for ...

There are three main types of color vision deficiency: red-green, blue-yellow, and complete. Color blindness, or color vision deficiency, affects the way you perceive color and can make it hard to ...

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 ...