Blindness isn't a tragic binary -- it's a rich spectrum | Andrew Leland

When does vision loss become blindness? Writer, audio producer and editor Andrew Leland explains how his gradual loss of vision revealed a paradoxical truth about blindness -- and shows why it might have implications for how all of us see the world.Want to help shape TED's shows going forward? Fill out our survey!For a chance to give your own TED Talk, fill out the Idea Search Application: ted.com/ideasearch.Interested in learning more about upcoming TED events? Follow these links:TEDNext: ted.com/futureyou Hosted on Acast. See acast.com/privacy for more information.