Journal of Clinical and Experimental Ophthalmology
Open Access
ISSN: 2155-9570
ISSN: 2155-9570
Department of Ophthalmology, Medical University of Vienna, Vienna, Australia
Research Article
Mechanisms and Safety of Ultrasound Phacoemulsification
Author(s): Thomas Graf, Thomas Gisler, Silvio Emmenegger, Samuel Tanner, Rupert Menapace and Silvio Di Nardo*
Objective: A comprehensive technical and biomedical analysis of ultrasound-induced effects during Phacoemulsification Cataract Surgery (PCS) and an assessment of the potential risks associated with ultrasound emulsification.
Methods: Whole-exome Modeling ultrasound wave propagation and intensities using the Finite Element Method (FEM). Cavitation onset was experimentally validated in a pressure chamber observed with a high-speed camera. The thermal effects of ultrasound energy were estimated through established physical and thermal models and confirmed in a cuvette setup using thermistor probes.
Results: At the distal end of the PCS tip, the ultrasound wave intensity reached 0.2 W/mm², resulting in ocular tissue displacements in the anterior chamber below 2 µm. The temperature rise in the anterior chambe.. View More»