Bilal , A. , Sattar, M. and Khan, M. 2022. Frequency Of Refractive Error in School Going Children Visiting Eye OPD with Complain of Headache and Eye Strain: Refractive Error in School Going Children. Pakistan BioMedical Journal. 5, 8 (Aug. 2022), 31–35. DOI:https://doi.org/10.54393/pbmj.v5i8.678.