准分子激光原位角膜磨镶术后眼压测量值的分析

Analysis of intraocular pressure after laser in situ keratomileusis

目的:探讨准分子激光原位角膜磨镶术(laser in situ keratomileusis,LASIK)后眼压测量值的影响因素。方法:对238例(473只眼)近视患者行LASIK并随访1年,记录手术前后的屈光度、角膜厚度、角膜曲率和眼压(非接触式眼压计测量)并进行统计学处理。结果:LASIK术后3、6、12个月的屈光度、角膜厚度、角膜曲率及眼压测量值均较术前明显下降,差异有非常显著意义(P<0.0001)。术前及术后各时期的眼压测量值与角膜厚度、角膜曲率均呈正相关,而与屈光度无关。结论:LASIK术后眼压测量值低于术前,角膜厚度和角膜曲率是影响眼压测量值的两个重要因素。

Objective:To investigate the factors that affect intraocular pressure (IOP) after laser in situ keratomileusis (LASIK). Methods:LASIK were performed on 238 myopic patients (473 eyes) and were followed up for 1 year after LASIK. The refractive power,comeal thickness,corneal curvature and IOP reading were analyzed preoperatively and at 3 months,6 months and 12 months after LASIK. Results:The refactive power,corneal thickness,corneal curvature and IOP reading decreased markedly after LASIK than before which had significant difference(P<0.0001). The lowering of IOP reading was correlated positively with comeal thickness and corneal curvature and not with the refractive power pre-and post-operatively. Conclusion: IOP reading is lower after LASIK and the main factors that affect IOP reading are corneal thickness and corneal curvature.