A New Objective Evaluation Tool for Grading Cataract Density Using PENTACAM®

Purpose: To grade the density of cataract objectively using a rotating Scheimpflug camera and to investigate the correlation between the grade of the density and the total phaco energies at the phacoemulsification. Methods: In this study, one hundred eighty six eyes of 166 consecutive patients undergoing phacoemulsification for cataract using Infinity (Alcon, US) by only one surgeon were preoperatively examined with PENTACAM® (Oculus, Germany) and graded into 5 grades according to the density and the area of the opacification of lenses. The difference in the mean phaco energy between 5 graded groups was statisti…