Eka Fitria, A.N., Nugraha, P.C. and Lamidi, L. 2019. Snellen Chart Based On Android Control. Indonesian Journal of Electronics, Electromedical Engineering, and Medical Informatics. 1, 1 (Aug. 2019), 27-33. DOI:https://doi.org/10.35882/ijeeemi.v1i1.5.