Department of Ophthalmology, Chungbuk National University College of Medicine, Cheongju, Korea.
Graefes Arch Clin Exp Ophthalmol. 2013 Apr;251(4):1157-61. doi: 10.1007/s00417-012-2240-0. Epub 2013 Jan 3.
To measure the efficiency of phacoemulsification, we have developed a new experimental model for testing phaco-efficiency and analyzed re-aspiration of repulsed particles.
Using a Kitaro wetlab system, a piece of blood agar (BA) was placed in an artificial chamber and the phacoemulsifier was placed horizontally. The settings of the phacoemulsifier (Infiniti, Alcon Laboratories) were 26 cc/min for aspiration, 350 cc/min for vacuum, and 95 cm of bottle height. The time to remove BAs was measured using Ozil 100 %, Ozil 40 %, and longitudinal 40 % of phaco power. The angle between the re-aspirated BA particles and the axis of the phacoemulsifier (re-aspiration zone, degree) was analyzed.
The average time (seconds) to remove BAs was lower in the Ozil 100 % and the Ozil 40 % mode than in the longitudinal mode (0.37 ± 0.39, 0.85 ± 0.57, and 2.22 ± 1.40 respectively, P value < 0.01). Repulsion exceeding 1 mm occurred more frequently in the longitudinal mode than in the Ozil 100 % mode (100 % vs 40 %, P value = 0.01, Fisher's exact test). The average of re-aspiration zone was 25.9 ± 14.5 in the longitudinal 40 % and 54.0 ± 23.0 in the Ozil 40 % (P value = 0.016).
The Ozil mode was more efficient than the longitudinal mode. In addition, the Ozil mode provided less repulsion and wider aspiration zone.
为了衡量超声乳化的效率，我们开发了一种新的实验模型来测试超声乳化效率，并分析了被排斥颗粒的再抽吸。
使用 Kitaro 湿实验室系统，将一块血琼脂（BA）放置在人工室中，并将超声乳化器水平放置。超声乳化器（Alcon Laboratories 的 Infiniti）的设置为抽吸 26 cc/min，真空 350 cc/min，瓶高 95 cm。使用 Ozil 100%、Ozil 40%和纵向 40%的超声乳化功率测量去除 BA 的时间。分析被再抽吸的 BA 颗粒与超声乳化器轴之间的角度（再抽吸区，度）。
Ozil 100%和 Ozil 40%模式去除 BA 的平均时间（秒）均短于纵向模式（分别为 0.37 ± 0.39、0.85 ± 0.57 和 2.22 ± 1.40，P 值<0.01）。纵向模式中排斥超过 1 mm 的情况比 Ozil 100%模式更常见（100%比 40%，P 值=0.01，Fisher 确切检验）。纵向 40%的平均再抽吸区为 25.9 ± 14.5，Ozil 40%为 54.0 ± 23.0（P 值=0.016）。
Ozil 模式比纵向模式更有效。此外，Ozil 模式提供的排斥力较小，抽吸区较宽。
