Role of the phaco tip surface

摘要

In his article reporting the results of a new prototype phacoemulsification tip with internal grooves (threaded tip), Watanabe1 showed that the threaded tip can amplify the cavitation effect and that intensification of cavitation gives a higher phacoemulsification effect. We have also investigated the role of the phaco tip when ultrasound (US) energy with an ultra-speed video recording system is applied by analyzing the stroke motion and the surface constitution before and after surgery. Based on our data and the frames of the videos, we assume that the shape of the phaco tip correlates to sections where the deterioration effect of cavitation is seen. This suggests that generation of the turbulence waves also depends on the tip design.