Chowdhury, P.H., Shah, B.H. and Tiwari, N. 2020. All About High Plus and High Minus Spherical Lens and Aspheric Lens. International Journal For Research In Health Sciences And Nursing . 6, 5 (May 2020), 19–23. DOI:https://doi.org/10.53555/hsn.v6i5.1331.