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 ...

Red-green color blindness is the most common type of color deficiency. Also known as deuteranopia, this is most likely a congenital condition, meaning that you’re born with it. If you have this type ...

Color blindness, or color vision deficiency, causes a person to see colors differently from most other people. There are several types of color blindness. Color vision deficiency or loss has multiple ...