【摘要】 目的 :观察激光乳化晶体过程中眼部组织的温度变化。方法 :使用针式传感器数字型温度计 ,测量 Er:YAG激光乳化晶体过程中离体猪眼球前房、角膜深层及角膜缘切口三部位组织温度。结果 :前房灌注条件下行激光乳化时 ,各部位组织温度升高幅度均在 1. 0℃以下 ;而在非灌注条件下激光乳化时前房温度升高幅度最大 ,为 14. 6℃ ,实测温度 36 . 1± 0 . 6 3℃ ,且均为前房温度 >角膜深层 >角膜缘切口 (p<0 . 0 1) ;同一部位、同一时刻 3种激光能量的平均温度 ,前房非灌注条件下激光乳化温度升高幅度 >前房灌注条件下激光乳化 (p<0 . 0 1)。结论 :前房灌注条件下行 Er:YAG激光乳化晶体过程中 ,前房、角膜深层及切口周围的组织温度升高幅度明显低于前房未灌注条件下的激光乳化 ;在前房非灌注条件下 ,Er:YAG激光乳化晶体可使前房、角膜深层及角膜缘切口周围组织温度明显升高 ,升高幅度与激光能量成正比 ,前房温度升高幅度最大更多还原

【Abstract】 Objective: To determine the temperature of tissue around the incision underwent lens photolysis. Methods: Using needle sensor digital thermometer to determine the variation of the temperature in the anterior chamber, corneal deep layer and the incision on the limbus of pig eye underwent Er: YAG lens photolysis in vitro. Results: The maximum temperature raise of the three sites while underwent photolysis with irrigating in the anterior chamber is 1.0°C; the maximum temperature raise in the anterior chamber is the most of the three sites while underwent photolysis without irrigating in the anterior chamber, which is 14.6°C, and the measured value is 36.1±0.63°C; the temperature raise of the anterior chamber> corneal deep layer> the limbus (P<0.01). The raise of the mean temperature of 3 bands of laser energy in the same site and at the same time of photolysis with irrigating in the anterior chamber is significantly higher than those without irrigating (P<0.01). Conclusions: The raise of the temperature of tissue around the incision underwent Erbium: YAG photolysis, with irrigating in the anterior chamber, is significantly less than which without irrigating in the anterior chamber. Without irrigating in the anterior chamber, Erbium: YAG photolysis can significantly rise the tissue temperature of the tissue around the incision, and the raise is proportional with the energy of laser. The raise in the anterior chamber is the most.更多还原