Raju Sampangi1, B C Hemalatha2. 1. Medical Director and Vitreo-retina Consultant, Nethraspandana Eye Hospital, Bengaluru, Karnataka, India. 2. Assistant Professor, Minto regional Institute of Ophthalmology, Bangalore Medical College and Research Institute, Bangalore and Consultant Nethtraspandana Eye Hospital, Bengaluru, Karnataka, India.