WATCH: Colour-blind people experience what they’ve being missing

If your sight is something you take for granted, then watching this video may make you think again.

Glasses company EnChroma makes special lenses to help people with the most common form of colour-blindness experience reds and greens again.

The video follows a number of colour-blind people as they try out the glasses and finally see the colours they have been missing out on for most of their lives.