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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。
Objective: To study the changes of non-contact tonometer (NCT) before and after laser in situ keratomileusis (LASIK) surgery and its relationship with diopter correction and intraoperative corneal cutting thickness. Methods: Eye LASIK patients with high myopia, excluding glaucoma or ocular hypertension, preoperative and postoperative 3,6,12 months for non-contact intraocular pressure measurements, preoperative and postoperative non-contact intraocular pressure measurements The correlation between intraocular pressure (IOP) and expected diopter correction and intraoperative corneal cutting thickness was analyzed. The results showed that there was significant difference (P <0.001) in non-contact IOP measurement before and after operation, The mean intraocular pressure (IOP) decreased by 0.931 ± 0.293kPa in one year after surgery. ③ The IOP decreased one year after surgery was significantly correlated with the expected diopter correction (r = 0.1942, P <0.05) There was also a statistically significant correlation between one year’s intraocular pressure (IOP) reduction and intraoperative corneal cutting thickness (r = 0.2577, P <0.001). CONCLUSION: Non-contact tonometer measurements can not be measured by traditional normal values after LASIK, May delay steroid-induced glaucoma The early diagnosis of laser-cut thin corneal thrombosis is the direct cause of postoperative non-contact tonometer measurement results decline.