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, School of Paramedical Sciences; Mashhad University of Medical Sciences; Mashhad Iran
5. Center for Health Related Social and Behavioral Sciences Research; Shahroud University of Medical Sciences; Shahroud Iran
6. Department of Epidemiology and Biostatistics, School of Public Health; Tehran University of Medical Sciences; Tehran Iran