Affiliation: | 1.Regional Institute of Ophthalmology, Institute of Medical Sciences, SS Hospital, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India ;2.Sheikh Fazilatunnesa Mujib Eye Hospital and Training Institute, Gopalgonj, Bangladesh ;3.The Retina Center, An Advance Eye Hospital, Guwahati, Assam, India ;4.Mahamaya Rajkiya Allopathic Medical College, Ambedkar Nagar, UP, India ;5.Department of Statistics, Faculty of Science and Technology, Mahatma Gandhi Kashi Vidyapeeth, Varanasi, Uttar Pradesh, India ;6.Department of Ophthalmology, College of Medicine and Health Sciences, Sultan Qaboos University, Alkoudh, P.O. Box 35, 123, Muscat, Oman ; |