1. Health Promotion Research Center, Department of Optometry, Rehabilitation Sciences Faculty, Zahedan University of Medical Sciences, Zahedan, Iran.
2. Refractive Error Research Center, Department of Optometry, Paramedical Faculty, Mashhad University of Medical Sciences, Mashhad, Iran.
3. Department of Optometry, Iran University of Medical Sciences, Tehran, Iran.
4. Department of Statistics, Science and Research Branch, Islamic Azad University, Tehran, Iran.
5. Department of Biomedical Engineering, Faculty of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran.
6. Department of Optometry, Rehabilitation Sciences Faculty, Zahedan University of Medical Sciences, Zahedan, Iran.
7. Department of Electrical Engineering, Center of Excellence on Soft Computing and Intelligent Information Processing (SCIIP), Ferdowsi University of Mashhad, Mashhad, Iran.
8. Neural Engineering Laboratory, Department of Biomedical Engineering, University of Neyshabur, Neyshabur, Iran.