While it can affect people at different rates, Mancina first knew he was losing his sight aged 13, and is now almost completely blind. In an interview with Jenkem Magazine, Dan confirmed that he only has a tiny amount of sight in his right eye, adding “If something’s not moving I can’t really see it. And it’s not clear vision. It’s like you put a bunch of layers of saran wrap and look through that. When I skate I can’t see my skateboard or my feet.”

Dan learnt to skate before losing his sight, but he hasn’t let his condition stop him. He now uses a cane to detect terrain to skate on (although he did admit to Jenkem that “the cane gives it such a dramatic effect. It’s hilarious like, ‘Whoa, is that dude blind?’”), and can place a beeper on objects that he wants to trick on, letting him know when he’s getting close to them.

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A video posted by Daniel Mancina (@blindphoto) on Nov 4, 2014 at 10:19am PST

We’re loathed to fall into the clumsy trap of being patronising and saying “well done on never giving up, Dan”, but it is hard not to be inspired by what he does. Whatever your circumstances, if there’s something you want to do, there’s a way to do it, you just have to find out how.