How did a free eye clinic that started in a house in south India in 1976 grow to become Asia's first international training facility for blindness prevention workers? In this audio interview, host Sheela Sethuraman speaks with Thulasiraj Ravilla from the Aravind Eye Care System. Ravilla concentrates on the innovative approaches that Aravind has developed to become a model for high-quality, low-cost health care.