A big vision for the future: a billion glasses for those in need

In sub-Saharan Africa vision and eye care services are costly and hard to come by. While 60-70% of people in wealthy nations wear corrective lenses, only 5% of people in the developing world wear glasses. Josh Silver, director of research at The Centre for Vision in the Developing World, has been working to make it easier for the world’s most destitute people to get glasses and keep them, even as they get older and their vision changes. He joins us now to talk about his efforts to bring sight to the world.