1. Department of Optometry, Mashhad University of Medical Sciences, Mashhad, Iran
2. Noor Research Center for Ophthalmic Epidemiology, Noor Eye Hospital, Tehran, Iran
3. Refractive Errors Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
4. Rehabilitation Research Center, Department of Optometry, Iran University of Medical Sciences, Tehran, Iran
5. Department of Ophthalmology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
6. Department of Basic Sciences, School of Nursing and Midwifery, Shahid Beheshti University of Medical Sciences, Tehran, Iran