A new ad pokes fun at common assumptions about people with Down syndrome. There's only one problem. It reinforces a narrow view of human value.

'I think parents should introduce their kids to as many different things as they can with other people with disabilities.'

Help raise dollars for a variety of hospital programs that benefit children with disabilities and their families.

'What I was coming up against in the health-care system was not being heard, not being valued, not being seen and acknowledged.'

Andrew Leland looks at blindness as a culture, from a historical perspective, and in relation to medicine and technology.