Seeing into the future

Blind seers aside, it's easier to see where you're going, on the road and in life, if you can actually see. More than half of Americans wear glasses; in poorer and more remote regions of the world, it's estimated that some two billion people need glasses but don't have access to them, cutting into their ability to learn, work and live a full life. A social entrepreneurial effort called VisionSpring has reached millions of such people in Asia and Africa, selling glasses at affordable prices to customers who earn less than $4 a day. Host Mary Kay Magistad talks with VisionSpring's founder Jordan Kassalow, and president Ella Gudwin.