1. Refractive Error Research Center, Department of Optometry, School of Paramedical and Rehabilitation Sciences, Mashhad University of Medical Sciences, Mashhad, Iran
2. Department of Audiology, School of Paramedical and Rehabilitation Sciences, Mashhad University of Medical Sciences, Mashhad, Iran
3. Eye Research Center, Department of Ophthalmology, Mashhad University of Medical Sciences, Mashhad, Iran