1. Department of Vitreoretinal Diseases, Medical Research Foundation, Sankara Nethralaya, Chennai, India,
2. Department of Optometry, Shanmugha Arts, Science, Technology and Research Academy, Thanjavur, India,
3. Department of Low Vision Care, Sankara Nethralaya, Chennai, India,
4. Department of Comprehensive Ophthalmology, Medical Research Foundation, Sankara Nethralaya, Chennai, India,