摘要
目的探讨Pentacam眼前段全景仪和角膜地形图仪测量角膜曲率结果的差异。方法随机抽取准分子激光屈光性角膜手术前的近视100例（200眼），年龄17—42岁，平均（22．6-4-1．2）岁，分别应用Pentacam和角膜地形图仪对角膜曲率进行测量，记录角膜曲率的最大值（K1）、最小值（K2），平均角膜曲率（Km），并应用配对t检验对两种方法的K1、K2、Km分别进行统计学分析。结果Pentacam测量的K1为（44．18±1．49）D、K2为（43．01±1．33）D、Km为（43．58±1．38）D；角膜地形图仪测量的K1为（44．06±1．35）D、K2为（43．17±1．28）D、Km为（43．62±1．30）D；经统计学分析，这两种方法的K1及K2差异具有统计学意义（P〈0．01），Km差异无统计学意义（P〉0．05）。结论Pentacam与角膜地形图仪均可用于测量角膜曲率，但Pentacam更精确、更全面。
Objective To compare the differences of keratometry determined by Pentacam and corneal topography. Methods Preoperative measurement of corneal euvature was prospectively obtained in 200 eyes of 100 patients with ametropia by Pentacam and corneal topography . The ages of the patients were between 17 and 42 years old （ average age ：22.6 years old） . The maximum, minimum and mean values of corneal curvature were recorded. Paired t test was used to analyze the difference of them. Results The maximum values of corneal curvature was （44.18 ± 1.49）D for Pentacam and （44.06 ± 1.35 ）D for corneal topography （P 〈0.01 ）, and the minimum values of corneal curvature was （43.01 ±1.33 ） D for Pentacam and （43.17 ± 1.28 ） D for corneal topograpby, （ P 〈 0.01 ） , but the mean values of corneal curvature was （43.58 ±1.38 ） D for Pentacam and （43.62 ± 1.30） D for eomeal topography （p 〉 0.05 ）. Conclusion Both of Pentacam and corneal topography can be used for measuring keratometry, but Pentacam is more aceu- rater.
出处
《中华眼外伤职业眼病杂志》
2012年第1期21-23,共3页
Chinese Journal of Ocular Trauma and Occupational Eye Disease
