Tono-Pen眼压计测量人角膜不同部位眼压的比较

目的:用Tono-Pen眼压计测量人眼角膜中央、旁中央、角巩缘部位眼压值,比较不同部位值的差异及相关性。方法:正常角膜用Tono-Pen眼压计依次测量角膜中心、旁中心、角膜缘眼压值,方差分析不同部位眼压的差异,分析结果的相关性。结果:Tono-Pen眼压计检测得出的眼压平均值角膜中央为16.28±2.73mmHg,旁中央为16.33±2.69mmHg,角巩缘为16.58±2.58mmHg.角膜中心与旁中心的相关系数r=0.966,P=0.000,角膜中心与角膜缘的相关系数为r=0.897,P=0.000,角膜旁中心与角膜缘的相关系数为r=0.910,P=0.000。不同部位眼压值差异没有显著性(F=0.093,P=0.913>0.05)。结论:不同部位眼压值密切相关,差异没有统计学意义。Tono-Pen眼压计测量不同部位眼压均可取得较为一致的结果。

Comparison of intraocular pressures at different points of human''''s cornea with Tono-Pen tonometer

·AIM:To explore the difference and correlation of the intraocular pressures(IOP)at different points in human’s cornea measured by Tono-Pen tonometer..METHODS:The IOP were measured by Tono-Pen tonometer at central cornea,pericentral cornea and corneoscleral limbus.Analysis of variance and linear correlation were used respectively to evaluate the difference and correlation of IOP at different points of cornea..RESULTS:The IOP obtained from central cornea,pericentral cornea and corneoscleral limbus by Tono-Pen tonometer were 16.28±2.73mmHg,16.33±2.69mmHg and 16.58±2.58mmHg respectively.There was significant correlation between the IOP at central cornea and at pericentral cornea(r=0.966,P=0.000);while the correlation coefficient between IOP at central cornea and at corneal limbus was 0.897(P=0.000),and the correlation coefficient between IOP at pericentral cornea and at corneal limbus was 0.910(P=0.000).There was no statistical difference between the IOP obtained from different points of cornea(F=0.093,P=0.913>0.05)..CONCLUSION:Consistent IOP values could be obtained from different points of cornea by Tono-Pen tonometer,and there was significant correlation and no statistical difference with between IOP at different locations of cornea..