An amazing video has emerged of a colourblind man's reaction as he receives EnChroma glasses.

The footage, shot in Baltimore, USA last month, shows him discovering colours as he wears the $600 glasses for the first time.

Around 30 of his friends chipped in to buy the glasses for him.

"He's still adjusting to the use of the glasses and is constantly finding new things he hadn't noticed before, from the breathing architecture of Baltimore to the brilliance of flowers and sunsets," the filmer wrote online.