From Express Newsline: "While scientists around the world debate the ethical issues surrounding use of stem cells for medical treatment, India has already taken lead in this direction and has conducted the world's biggest and most successful adult stem cell experiment. ... The LV Prasad Eye Institute has been into adult stem cell research for the last six years and doctors at the hospital have successfully reconstructed over 160 damaged retinas using stem cells." Indian researchers are also working on stem cell based regenerative medicine for heart disease, another currently promising direction. First generation therapies based on transplants and adult stem cells are working well in trials - even though we don't yet know how they work.