Blindness interventions

This is a pretty inspiring story of field work for children with treatable blindness in India, and neurological research that goes alongside treatments:

http://www.ted.com/talks/pawan_sinha_on_how_brains_learn_to_see.html

and another great story of work in the field on blindness (my classmate Mark Orrs is working with him).

http://adventure.nationalgeographic.com/2009/12/best-of-adventure/geoff-tabin/1