Second Suns takes us from improvised plywood operating tables in villages without electricity or plumbing to state-of-the-art surgical centres at major American universities where these two driven men are restoring sight and hope to patients from around the world. With their revolutionary, inexpensive style of surgery, Tabin and Ruit have been able to cure tens of thousands. David Oliver Relin brings the doctor's work to vivid life through poignant portraits of patients helped by the surgery, from old men who cannot walk treacherous mountain trails unaided to children who have not seen their mother's faces for years.