1. Department of Health Services Research, University of Liverpool, Liverpool, UK
2. Department of Applied Mathematics, Liverpool John Moores University, Liverpool, UK
3. Department of Eyes and Vision Science, University of Liverpool, Liverpool, UK
4. SK Glaucoma Care Foundation, New Delhi, India
5. Glaucoma Clinic New Delhi, India
6. Glaucoma Service, Sadguru Netra Chikatsalya, Chitrakoot, India
7. Head, Academics, Research and Training, Sadguru Netra Chikatsalya, Chitrakoot, India