High Prevalence of Refractive Errors in 7 Year Old Children in Iran - HASHEMI, Hassan; YEKTA, Abbasali; JAFARZADEHPUR, Ebrahim; OSTADIMOGHADDAMHadi; ETEMAD, Koorosh; ASHARLOUS, Amir; NABOVATI, Payam; KHABAZKHOOB, Mehdi (Iranian Journal of Public Health, 2016)