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 ...

Blind people can experience visual imagery in their dreams. Those who lost their sight after birth can draw from visual memories, while those blind from birth have brain waves associated with ...

There are almost three million colour blind people in the UK - that is enough to fill Wembley stadium more than 30 times. The NHS describes colour vision deficiency as when someone finds it ...