I was recently writing a paper on the need for micro-finance in Sub-Saharan Africa for a geography class and I stumbled upon this project which I had heard of before through a talk with Jacqueline Novogratz/Acumen Fund at Parsons. It's called Adaptive Eyewear and was immediately fascinated. Here's a bit from Monocle Magazine:
Adaptive Eyewear is a social enterprise that’s working to correct the vision of some of the millions of people in developing nations that have no access to glasses. They do this using a unique technology that might prove the key to giving widespread vision correction to those who need it in a cost-effective manner. Monocle visits their headquarters in Oxford to see how they’re doing it.
watch the full explanation here on their website. brilliant.