Colour blindness affects approximately one in 12 men and one in 200 women, which equates to 4.5 per cent of the population or around 2.7 million people in the UK, according to campaign group Colour ...

Anyone who's ever stared in desperation at a paint colour chart will know that telling shades apart is not always the easiest task. Due to our biological differences, some people seem to have no ...

14:01, Fri, Aug 30, 2024 Updated: 14:10, Fri, Aug 30, 2024 People have been testing out their eyesight on TikTok lately in a viral 'Colour Sense Challenge' - but does it really work? The Colour Sense ...

Try your hand at lots more optical illusions below to test yourself A FASCINATING viral experiment has sparked debate online with people left stumped over if they see blue or green. The clever online ...

It's something that most of us learn as toddlers. But a new test will have you questioning everything you thought you knew ...

Following on from your article on colour blindness (17 March, p 38) and as someone with fairly severe protanopia (a reduced sensitivity to red light), I was dismayed to read elsewhere that screening ...