1. Department of Retina and Vitreous, Anant Bajaj Retina Institute, L V Prasad Eye Institute, Vijayawada, India
2. Department of Retina and Vitreous, Anant Bajaj Retina Institute, L V Prasad Eye Institute, Hyderabad, India
3. Department of Ophthalmology, UPMC Eye Centre, University of Pittsburgh, Pittsburgh, PA, USA