Question: how many colours can the eye see???

Dervil Cody answered on 8 Nov 2016:

That’s a really interesting question! It’s actually one which there’s been a lot of debate about. Some scientists say we can see 10,000 colours with our eyes, other scientists say its up to 10 million! It all depends on what you think a colour is, this will change from person to person, and even from one eye to the other in the same person!