Color blindness

inability or decreased ability to see colour, or perceive colour differences, under normal lighting conditions

color perception test

Pingelap is an atoll in the Pacific Ocean, part of Pohnpei State of the Federated States of Micronesia, consisting of three islands: Pingelap Island, Sukoru and Daekae, linked by a reef system and surrounding a central lagoon, although only Pingelap Island is inhabited. The entire system has a land area of 1.8 km² (455 acres) at high-tide, and is less than at its widest point. The atoll has its own language, Pingelapese, spoken by most of the atoll's 250 residents.

thumb|right|300px|Typical cone cell spectral sensitivity of organisms with dichromatic color vision

sociological term for disregard of racial characteristics

type of human vision deficiency

agnosia that is a loss of the ability to recognize a color, while being able to perceive or distinguish it

color space represented by the response of the three types of cones of the human eye

EnChroma are a brand of color corrective lenses designed to address the symptoms of red–green color blindness. Studies have shown that these lenses can alter the appearance of colors, but they do not restore normal color vision, and generally agree that they do not allow the wearer to see "new" colors.