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