Nearly 550 million people - almost half of India's population - have vision problems and so doctors must be trained in latest techniques for correcting vision problems an official said on Thursday. Mahipal Sachdev chairman-scientific committee Intra Ocular Implant and Refractive Society of India (IIRSI) and chairman of Centre for Sight group of eye hospitals (CFS) said Ophthalmology is an ever-evolving field and that doctors need to keep themselves up to date. (Read: 14 causes of blurred vision you might not know about) In India as many as 550 million people - almost half of India's population - are estimated
