摘要
目的：研究激光原位角膜磨镶术（LASIK）手术前后非接触眼压计（NCT）测量值的改变，及其与屈光度矫正值和术中角膜切削厚度之间的关系，方法：随机选择112眼接受LASIK治疗的高度近视患者，排除青光眼或高眼压症，于术前、术后3、6、12个月作非接触眼压测量，对术前、术后的非接触眼压测量值作u检验，并对眼压改变值与预期屈光度矫正值和术中角膜切削厚度作相关性分析，结果：①手术前后非接触眼压测量值的改变差异有显著性意义（P＜0.001），术后一年平均眼压测量值下降0.931±0.293kPa;③术后一年眼压下降值与预期屈光度矫正值存在统计学上的相关性(r=0.1942，P＜0．05);术后一年眼压下降值与术中角膜切削厚度亦存在统计学上的相关性(r=0.2577,P＜0.001），结论：LASIK术后不能按传统正常值衡量非接触眼压计测量结果，否则可能延误类固醇性青光眼的早期诊断，激光切削石角膜厚度变薄是导致手术后非接触眼压计测量结果下降的直接原因。
To study the chasees of the measurement using Non-contact tonometer (NCT) befor and afterIASIK, and the relationship between the reduction in introcular pressure(IOP) afer LASIK and the degree of myopia treat-ed, the comeal thickness ablated. Methods: The study comprised 112 eyes of high myopia that had undergone LASIK, pa-tients who had glaucoma and ocular hnyrtension were excluded. Before and after IASIK, introcular pressure was measured bynoncontact tonometer. The u test was used for statistical analysis in the IOP reading whre and afer LASIK, and the correla-tion between the IOP reduchOn afer LASIK and the degree of myopia treated and the comeal mickness ablated (was ob-served). Results: There was siedcan anrence between the measmement using NCT before and after LASIK(P<0. 001).One year aller LASIK mean IOP drip was 7.2±2. 2mmHg. There was peihve correahon between IOP drop and the dioptertreated (r=10. 1942, P < 0. 05), or between IOP drop and the corneal thickness abated (r=0. 2577, P <0. 001). Condu-sion: The IOP measured aller LASIK may ha reduced hacause of changes in corneal thickness. The NCT measurement afterLASIK can' t be judged by the normal value in tradition, which may delay the steroid glaucoma djopsis after LASIK.
出处
《眼视光学杂志》
1999年第2期89-91,共3页
Chinese Journal of Optometry & Ophthalmology
关键词
准分子激光
屈光手术
眼压
近视
LASIK Refractive surgery Introcular Pressure
