Corsi Andrea, Corsi Isabella, de Paula Alessandro
Ophthalmogy Unit, Policlinico Casilino, Via Casilina, 1049, 00169, Rome, Italy.
Department of Ophthalmology, University of Rome Tor Vergata, Rome, Italy.
Int Ophthalmol. 2023 Dec;43(12):4481-4485. doi: 10.1007/s10792-023-02848-2. Epub 2023 Sep 13.
To describe a new and less risky technique for the cleaning of posterior capsule during phacoemulsification called passive cap vac.
Passive cap vac consisted in the removal of residual posterior capsule opacities using a disconnected 0.3 mm aspiration cannula. The hole of the aspiration cannula was faced toward posterior capsule and gently rubbed against it to achieve a complete cleaning of posterior capsule. The video of the technique is available online.
With this new technique, the aspiration was ruled by the gravity and by the height of the balanced saline solution (BSS), in addition the Venturi's effect and the absence of active aspiration beyond the cannula avoided an excessive aspiration of posterior capsule.
Passive cap vac allowed to clean posterior capsule using softer forces than traditional way, minimizing the risk of capsular tear.
描述一种在超声乳化术中清洁后囊膜的新的、风险较低的技术，称为被动囊袋抽吸法。
被动囊袋抽吸法是使用一根断开连接的0.3毫米抽吸套管去除残留的后囊膜混浊。将抽吸套管的孔朝向后囊膜，并轻轻摩擦后囊膜，以实现后囊膜的彻底清洁。该技术的视频可在线获取。
采用这种新技术，抽吸由重力和平衡盐溶液（BSS）的高度控制，此外，文丘里效应以及套管外无主动抽吸避免了对后囊膜的过度抽吸。
被动囊袋抽吸法能够以比传统方法更轻柔的力量清洁后囊膜，将囊膜撕裂的风险降至最低。
