I. Maharjan, E. Shrestha, B. Gurung, H. M. Gurung, H. B. Adhikari, and P. Baral, “Pain Perception in Cataract Surgery: Topical versus Peribulbar Anaesthesia”, Nep J Oph, vol. 13, no. 1, pp. 50–58, Jan. 2021.