Dan Mancina of Livonia, Michigan began to lose his sight as a teenager due to two disorders of the eye. Now he's 95 percent blind. And he's a killer skateboarder. From a Red Bull interview with Mancina:
Can you speak a bit about your goal of helping people build more parks for visually-impaired people?
My new kind of goal I'm working towards is having a skatepark built entirely for the blind, using techniques I use, like tactile things on the ground, audio speakers within objects to help orientate yourself and things hanging from the ceiling that can help let you know where you are.
I would love to have it fully equipped with skateboards and pads to help bring blind people in and introduce them to skateboarding.
One of the biggest allures of skating is the ability to have your own freedom, choose your tricks and your style. I'd love to try to spread that to other blind people, to give them a chance to try that out.