1. Noor Research Center for Ophthalmic Epidemiology, Noor Eye Hospital, Tehran, Iran
2. Noor Ophthalmology Research Center, Noor Eye Hospital, Tehran, Iran
3. Department of Epidemiology, Faculty of Health, Ilam University of Medical Sciences, Ilam, Iran
4. University of Nicosia Medical School, Nicosia, Cyprus
5. Department of Optometry, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran
6. Department of Rehabilitation Science, School of Allied Medical Sciences, Mazandaran University of Medical Sciences, Sari, Iran
7. Refractive Errors Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
8. Department of Basic Sciences, School of Nursing and Midwifery, Shahid Beheshti University of Medical Sciences, Tehran, Iran