Rothschild Foundation, Paris, France.
J Cataract Refract Surg. 2010 Oct;36(10):1718-23. doi: 10.1016/j.jcrs.2010.05.019.
To evaluate the degree of static and dynamic cyclotorsion using a rotational eye tracker in laser in situ keratomileusis (LASIK) to correct myopic astigmatism.
Rothschild Foundation, Paris, France.
Cohort study.
Laser in situ keratomileusis with active iris registration using a Zyoptix 100 Hz excimer laser with Advanced Control Eyetracking was performed in eyes with myopic astigmatism. In all cases, iris registration was used to evaluate the degree of static cyclotorsion preoperatively and the degree of dynamic cyclotorsion and intraoperatively. The direction, mean values, and ranges of static and dynamic cyclotorsion were recorded. The amplitude of intraoperative cyclotorsion was reported.
The study included 74 consecutive eyes (38 patients). The direction of cyclotorsion was not statistically significant. The mean static cyclotorsion was 3.08 degrees ± 2.68 (SD) (range -7.0 to 14.0 degrees) and the mean dynamic cyclotorsion, 3.39 ± 2.94 degrees (range -10.3 to 13.5 degrees). During photoablation, the mean amplitude of cyclotorsion was 2.69 ± 1.63 degrees (range 0.0 to 9.2 degrees). The magnitude of dynamic cyclotorsion was less than 5 degrees in 66% of eyes, 5 degrees or more in 34% of eyes, and 10 degrees or more in 4% of eyes.
Static and dynamic cyclotorsion was detected with a dynamic eye tracker in eyes having LASIK. Rotational movements were mainly static but had significant amplitude during photoablation.
使用旋转眼球跟踪器评估 LASIK 治疗近视散光时的静态和动态眼振程度。
法国巴黎 Rothschild 基金会。
队列研究。
使用 Zyoptix 100Hz 准分子激光联合 Advanced Control Eyetracking 主动虹膜登记系统对近视散光患者行 LASIK。所有病例均采用虹膜登记系统评估术前静态眼振程度、术中动态眼振程度和眼振方向。记录静态和动态眼振的平均值和范围。报告术中眼振的幅度。
该研究纳入 74 只连续眼（38 例患者）。眼振方向无统计学意义。平均静态眼振为 3.08°±2.68°（SD）（范围-7.0 至 14.0°），平均动态眼振为 3.39°±2.94°（范围-10.3 至 13.5°）。在光切削期间，眼振平均幅度为 2.69°±1.63°（范围 0.0 至 9.2°）。66%的眼动态眼振幅度小于 5°，34%的眼动态眼振幅度为 5°或 5°以上，4%的眼动态眼振幅度为 10°或 10°以上。
在 LASIK 术中使用动态眼球跟踪器可检测到静态和动态眼振。旋转运动主要是静态的，但在光切削期间幅度较大。
