iCare回弹式眼压计与Goldmann压平眼压计的测量比较  

Comparison of the iCare Rebound Tonometer and the Goldmann Applanation Tonometer

作　　者：高丰 刘旭 赵青 

机构地区：[1]湖北省襄阳市第一人民医院眼科,441000

出　　处：《医学研究杂志》2014年第9期132-136,共5页Journal of Medical Research

摘　　要：目的 比较iCare回弹式眼压计（RT）与Goldmann压平式眼压计（GAT）测量眼压的差异,并分析其与中央角膜厚度（CCT）的相关性,评估RT的耐受性和安全性。方法 对672眼/336例患者同时用RT和GAT测量眼压,以右眼GAT眼压值,将患者分为3组（A组：7～15mmHg,n=74,B组：16 ～ 22mmHg,n=218,C组：23 ～ 50mmHg,n=44）.同时测量角膜厚度和进行裂隙灯检查。采用Bland-Ahman和配对t检验方法比较分析两种眼压计测量的一致性,应用直线相关回归分析CCT和RT、GAT测量眼压值的相关性。结果 RT和GAT测量的眼压均值分别为18.30 ±5.10mmHg和18.52 ±4.46mmHg,二者差异无统计学意义（t=-1.31,P=0.190）,二者差值的95％可信区间为-5.80 ～ 6.24mmHg;RT和GAT呈现良好的相关性（r=0.806,P=0.000）。然而,当GAT眼压值≥23mmHg时,RT测量值明显低于GAT,为-1.66±3.87mmHg,且差异有统计学意义（t=2.84,P =0.007）。RT（r =0.390,P=0.000）和GAT（r =0.191,P=0.000）的眼压测量值与CCT均呈正相关。RT测量耐受性好,无角膜上皮缺损出现,患者主诉无不适感。结论 回弹式眼压计具有良好的耐受性和安全性,在低、中眼压范围内,可作为GAT测量眼压的可靠替代;在高眼压范围,RT与GAT一致性欠佳.与GAT相比,RT测量值受CCT的影响更大。Objective To compare the intraocular pressure （IOP） results measured by RT with those obtained by GAT and to correlate with central corneal thickness （CCT）.Furthermore,the tolerability and safety of RT were evaluated.Methods IOP of 672 eyes of 336 patients was determined by both RT and GAT.The patients were divided into three groups （group A：7-15mmHg,n =74,group B：16-22mmHg,n =218,group C：23-50mmHg,n =44） according to the IOP readings of GAT from right eyes.Pachymetry and slit lamp inspection were also performed.To establish the agreement between devices,a Bland-Altman analysis and paired t test were performed,and correlation between CCT and IOP readings obtained by both devices were assessed using linear regression correlation analysis.Results The mean IOP values of RT and GAT were 18.30 ± 5.10mmHg and 18.52 ± 4.46mmHg respectively without significant difference between them （t =-1.31,P =0.190）.The 95％ confidence interval of the differences between the two devices was-5.80 ～ 6.24 mmHg.RT readings correlated well with those of GAT （r =0.806,P =0.000）.However,the RT measurements were significantly （t =-2.84,P =0.007） lower （-1.66 ± 3.87mmHg） than the GAT ones when GAT ≥ 23 mmHg.Both RT （r =0.390,P =0.000） and GAT （r =0.191,P =0.000） showed positive correlation with CCT.The measurement with RT was well tolerated.None of corneal epithelial defect was detected and all subjects denied discomfort.Conclusion The rebound tonometer is well tolerated and safe.It can be considered a reliable alternative to GAT in a low to moderate IOP range.In high IOP values,measurement with RT does not correlate well with GAT.RT readings are influenced more by CCT compared by GAT.

关 键 词：ICARE 回弹式眼压计 GOLDMANN压平眼压计 眼压 中央角膜厚度 

分 类 号：R77[医药卫生—眼科]