, A.P.D.M.H.A. and Associate Professor Dr. Gholam Farooq 2020. Prevalence of Refractive Errors in School Children Aged 11-15 Years in Jalalabad city of Nangarhar Province, Afghanistan – a cross-sectional Study. IJRDO -JOURNAL OF HEALTH SCIENCES AND NURSING. 5, 1 (Jan. 2020), 09-19. DOI:https://doi.org/10.53555/hsn.v5i1.3412.