准分子激光原位角膜磨镶术前后非接触眼压测量值变化的分析

Analysis of the Change of Intraocular Pressure Before and After Laser in Situ Keratomileusis

目的 探讨准分子激光原位角膜磨镶术 (laserinsitukeratomileusis,LASIK)前后非接触眼压计 (noncontacttonommeter,NCT)测量值的变化及其影响因素。方法 对 181例随访时间 >6月的LASIK手术患者资料进行回顾 ,分析NCT测量值变化及其与中央角膜厚度 (centralcornealthickness ,CCT)、屈光度的关系。结果 LASIK后NCT测量值下降 ,差异有非常显著性意度 (P <0 .0 1) ,术后NCT测量值下降与术前屈光度、角度切削深度有关 (P <0 .0 1)。结论 LASIK术后NCT测量值降低 ,屈光度高、角膜切削深度大 ,眼压值下降多。对LASIK术后患者眼压 (intracocularpressure ,IOP)评估必须进行校正。

Objective To probe into the change of intraocular pressure (IOP) detected with noncontact tonometer (NCT) before and after laser in situ keratomileusis (LASIK). Methods The data of 181 eyes received LASIK were analyzed retrospectively. The follow up time was over 6 months. Results IOP measured by NCT was reduced significantly after LASIK (P<0.01). It was associated with the diopter and the depth of corneal ablation (P<0.01). Conclusions IOP measured by NCT reduced after LASIK. The decrease related to the diopter and the depth of corneal ablation. The evaluation of IOP after LASIK needed to be adjusted.