飞秒激光辅助LASIK治疗高角膜前表面屈光力近视患者术后角膜生物力学观察

发布时间：2019-02-09 16:07

【摘要】：目的研究飞秒激光辅助LASIK治疗高角膜前表面屈光力近视患者术后角膜生物力学的变化情况。方法高角膜前表面屈光力近视患者64例104只眼,根据ORBSCAN角膜地形图检查角膜前表面屈光力不同,分为实验组和对照组两组。实验组患者32例52只眼,角膜前表面屈光力47 D;对照组患者32例52只眼,角膜屈光力47 D。两组患者均采用飞秒激光辅助LASIK手术治疗,观察两组患者术前、术后3和6个月角膜前表面屈光力、眼反应分析仪检测的角膜补偿眼压、Goldmann相关眼压、角膜阻力因子、角膜滞后量以及超声测量中央角膜厚度的变化。结果两组患者角膜厚度、ORA各测量值及角膜前表面屈光力术后3个月的测量值明显低于术前,差异均有显著意义(P0.05);两组患者术后3个月的测量值与术后6个月比较,差异无显著意义(P0.05)。结论飞秒激光辅助LASIK手术治疗单纯角膜前表面屈光力47 D但角膜后表面高度正常、角膜厚度正常的患者,其术后3个月后角膜生物力学各测量值基本稳定,术后6个月角膜生物力学与正常角膜前表面屈光力改变基本一致。
[Abstract]:Objective to study the changes of corneal biomechanics in patients with high anterior surface refractive myopia treated with femtosecond laser assisted LASIK. Methods Sixty-four eyes of 64 patients with high corneal anterior surface refraction myopia were divided into experimental group and control group according to ORBSCAN corneal topography. The refractive power of the anterior corneal surface was 47 D in the experimental group (n = 32) and in the control group (n = 52). The patients in both groups were treated with femtosecond laser assisted LASIK operation. The refractive power of the anterior surface of cornea was observed 3 and 6 months before operation, and the corneal compensation intraocular pressure, Goldmann related intraocular pressure and corneal resistance factor were measured by eye response analyzer. Corneal hysteresis and central corneal thickness were measured by ultrasound. Results the corneal thickness, ORA and refractive power of anterior corneal surface in the two groups were significantly lower than those before operation (P0.05). There was no significant difference between the two groups in 3 months after operation and 6 months after operation (P0.05). Conclusion Femtosecond laser assisted LASIK surgery in the treatment of patients with simple corneal anterior surface refractive power 47D but normal posterior corneal surface height and normal corneal thickness, the biomechanical measurements of cornea were basically stable 3 months after operation. 6 months after operation, corneal biomechanics and normal corneal anterior surface refraction were basically the same.
【作者单位】：中国人民解放军第四六三医院眼科;
【分类号】：R779.63

【相似文献】