Some people see the world in black and white but the most common form of colour blindness is on the red-green spectrum PEOPLE who have trouble seeing colours or who cannot see colour are referred to ...

Science fiction is often used to show us the world through impossibly alien eyes. But there are fully human people who see the world in an alien way (to the rest of us) via current biological means.

On this day in history: 250 years ago, John Dalton, the first scientist to formally describe the condition now known as colour blindness, was born. Michelle Starr is CNET's science editor, and she ...

PEOPLE who have trouble seeing colours or who cannot see colour are referred to as colour-blind or have colour vision deficiency (CVD). In the UK it is estimated one in 12 men, and one in 200 women ...