Tognetto Daniele, Sanguinetti Giorgia, Sirotti Paolo, Brezar Edoardo, Ravalico Giuseppe
Eye Clinic, University of Trieste, Trieste, Italy.
J Cataract Refract Surg. 2005 Feb;31(2):406-11. doi: 10.1016/j.jcrs.2004.04.042.
To describe a technique for visualizing fluid turbulence and cavitational energy created by ultrasonic phaco tips.
University Eye Clinic of Trieste, Trieste, Italy.
Generation of cavitational energy by the phaco tip was visualized using an optical test bench comprising several components. The technique uses a telescope system to expand a laser light source into a coherent, collimated beam of light with a diameter of approximately 50.0 mm. The expanded laser beam shines on the test tube containing the tip activated in a medium of water or ophthalmic viscosurgical device (OVD). Two precision optical collimators complete the optical test bench and form the system used to focus data onto a charge-coupled device television camera connected to a recorder.
Images of irrigation, irrigation combined with aspiration, irrigation/aspiration, and phacosonication were obtained with the tip immersed in a tube containing water or OVD.
Optical image processing enabled acoustic cavitation to be visualized during phacosonication. The system is a possible means of evaluating a single phaco apparatus power setting and comparing phaco machines and techniques.
描述一种可视化超声乳化针头产生的流体湍流和空化能量的技术。
意大利的里雅斯特大学眼科诊所。
使用由多个组件组成的光学试验台可视化超声乳化针头产生的空化能量。该技术使用望远镜系统将激光光源扩展为直径约50.0毫米的相干准直光束。扩展后的激光束照射在装有在水或眼科粘弹剂（OVD）介质中激活的针头的试管上。两个精密光学准直仪完善了光学试验台，并形成用于将数据聚焦到连接到记录器的电荷耦合器件电视摄像机上的系统。
将针头浸入装有水或OVD的试管中，获得了灌注、灌注联合抽吸、灌注/抽吸和超声乳化的图像。
光学图像处理能够在超声乳化过程中可视化声空化。该系统是评估单个超声乳化设备功率设置以及比较超声乳化机器和技术的一种可能手段。
