Under the Delivering Sight Worldwide programme, the ORBIS Flying Eye Hospital was in the capital last week. The programme is aimed at increasing public awareness about the threat of blindness. Doctors from the flying hospital will see patients. There will also be a national workshop on eye banking and eye donation. India has the largest blind population—15 million—in the world. But studies say close to 80 per cent of blindness cases is treatable/preventable. ORBIS International is a non-profit humanitarian organisation. Their Flying Hospital is like a central training hospital which goes from country to country teaching modern methods of treating blindness to professionals.