Colour blindness affects more people than you might assume. In fact, an estimated 300 million people globally have colour blindness, according to the Colour Blind Awareness organisation. This ...

If you're concerned that you may be colour blind, or just curious, you can take an easy test on your phone, but the NHS share ...

Most of us like to think we’ve got vision as sharp as an eagle’s. But honestly, how sure are we? This test is a simple way to check that. You’ll see 23 colored images with hidden numbers, letters, ...

Approximately 300 million people worldwide have colour blindness, with around 1 in 12 men and 1 in 200 women affected by the ...

Millions globally live with colour blindness, often unaware of their condition. An optometrist shares a quick, one-minute test using Ishihara plates to help identify colour vision deficiency, which ...