Shekhar, Swetank, Praveen Malik, Amrendra Kumar, and Ravindra Singh. “Comparing the Number of Attempts Required for Complete Nuclear Chop Using Calibrated and Conventional Phacotip”. International Journal of Research in Medical Sciences 8, no. 6 (May 26, 2020): 1994–1998. Accessed February 3, 2026. https://www.msjonline.org/index.php/ijrms/article/view/8046.