How It Works

Colour blindness

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The rods and cones in your eyes are unique, and therefore we all perceive colours slightly differentl­y. However, some people cannot discern between one colour and another. Three types of cones – red, green and blue – create the colours we see, while the rods record brightness. People with colour blindness have fewer of certain types of cones and more of another. This means they are more receptive to certain colours than others, and will even be unable to distinguis­h between some colours. The most common colour confusion is between red and green.

 ??  ?? Someone with colour blindness will have difficulty seeing the word above
Someone with colour blindness will have difficulty seeing the word above

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