Lecture video description from TED: Months after he was born, in 1948, Ron McCallum became blind. In this charming, moving talk, he shows how he is able to read — and celebrates the progression of clever tools and adaptive computer technologies that make it possible. With their help, and that of generous volunteers, he’s become a lawyer, an academic, and, most of all, a voracious reader. Welcome to the blind reading revolution. (Filmed at TEDxSydney.)