1. Department of Pediatric Ophthalmology, Strabismus and Neuro-Ophthalmology, Aditya Birla Sankara Nethralaya, (A Unit of Medical Research Foundation, Chennai), India
2. Department of Orbit, Oculoplasty, Reconstructive and Aesthetic Services, Aditya Birla Sankara Nethralaya, (A Unit of Medical Research Foundation, Chennai, India)
3. Department of Radiodiagnosis, EKO X-ray and Imaging Institute, Kolkata, West Bengal, India