How do we see colour?

 

How many colours do you see here?

 

Most would say six, but some people would say only two or three and some people will see no colour at all (very rare).

 

So how does it work, how do our eyes and brains interpret colours?

 

Paul Martin is a Professor of Experimental Ophthalmology from Sydney University’s Save Sight Institute, who explains how it all works.
Advertisement
Advertisement