1. Community Ophthalmology, AIIMS, New Delhi, India
2. Department of Ophthalmology, Dr. R. P. Centre, AIIMS, New Delhi, India
3. Department of Ophthalmology, Chacha Nehru Bal Chikitsalaya, New Delhi, India
4. Department of Ophthalmology, National Cancer Institute, AIIMS, Jhajjar, Haryana, India
5. Medical Social Service Officer, AIIMS, New Delhi, India