Finite element model of the temperature increase in excised porcine cadaver iris during direct illumination by femtosecond laser pulses.
Finite element model of the temperature increase in excised porcine cadaver iris during direct illumination by femtosecond laser pulses.
复制标题
飞秒激光脉冲直接照射期间离体猪尸体虹膜温度升高的有限元模型。
DOI：
10.1117/1.jbo.17.7.078001
复制
发表时间：
2012
影响因子：
3.5
通讯作者：
Juhasz,Tibor
中科院分区：
文献类型：
--
作者：
Sun,Hui;Kurtz,RonaldM;Juhasz,Tibor
为了模拟激光角膜手术中虹膜的热效应，我们模拟了猪尸体虹膜的温度升高。60 kHz FS 60激光器的模拟数据显示，在24秒的手术时间内，温度分别升高至1.23°C和2.45°C（激光脉冲能量分别为1和2μJ）。计算的温度分布与使用猪尸体虹膜的活体实验数据吻合良好。不同类型飞秒激光的模拟结果表明，准分子激光原位角膜磨镶术不会对虹膜造成安全危害。
In order to model the thermal effect of laser exposure of the iris during laser corneal surgery, we simulated the temperature increase in porcine cadaver iris. The simulation data for the 60 kHz FS60 Laser showed that the temperature increased up to 1.23°C and 2.45°C (at laser pulse energy 1 and 2µJ, respectively) by the 24 second procedure time. Calculated temperature profiles show good agreement with data obtained fromex vivoexperiments using porcine cadaver iris. Simulation results of different types of femtosecond lasers indicate that the Laser in situ keratomileusis procedure does not present a safety hazard to the iris.