When these genes are altered, the cones don’t function properly. This leads to different types of color blindness: Not all ...

Some people see the world differently. Literally. It's a phenomenon called color blindness. It's not just people who can' see color at all. Some people just can't see as many colors as the rest of us.

Color-blind people may have difficulties judging traffic lights or determining if food has gone bad. This video illustrates how people who are color-blind see the world. For the video, we used ...

This Color vision testing is based on the Ishihara Test for color blindness. Color blindness is a condition where people find it difficult to distinguish between certain colors. This color blindness ...

To appreciate a painting, we’re taught to look for color, composition ... shows that the visual cortex is stimulated by touch. Blind people perceive shapes with their existing senses, a process ...

Difficulty identifying or distinguishing colors is one of the first signs of color blindness in children. They will get red and green, or blue and yellow, mixed up, and this is usually seen when ...