VisionSpring's model is "A classic 'win-win'," according to Christopher Gergen and Gregg Vanourek in Vision(ary) Entrepreneur, their article posted on Harvard Business Publishing Online.
VisionSpring is a classic model for entrepreneurship, they note, in which "motivated workers gain access to a promising entrepreneurial opportunity (paying twice the wages of typical local jobs), and their customers get inexpensive, yet potentially life-transforming eyeglasses. Dr. Kassalow saw the problem, understood the context, and connected the dots. He founded the Scojo Foundation, now called VisionSpring; its mission is to 'reduce poverty and generate opportunity in the developing world through the sale of affordable eyeglasses.'"
Christopher Gergen and Gregg Vanourek are founding partners of New Mountain Ventures, an entrepreneurial leadership development company, and co-authors of Life Entrepreneurs: Ordinary People Creating Extraordinary Lives.