中华眼视光学与视觉科学杂志
中華眼視光學與視覺科學雜誌
중화안시광학여시각과학잡지
CHINESE JOURNAL OF OPTOMETRY OPHTHALMOLOGY AND VISUAL SCIENCE
2013年
5期
261-265
,共5页
祖培培%王雁%左彤%吴迪
祖培培%王雁%左彤%吳迪
조배배%왕안%좌동%오적
生物力学眼压分析仪%生物力学%眼压%中央角膜厚度%重复性%一致性
生物力學眼壓分析儀%生物力學%眼壓%中央角膜厚度%重複性%一緻性
생물역학안압분석의%생물역학%안압%중앙각막후도%중복성%일치성
Corvis ST%Biomechanics%Intraocular pressure%Corneal central thickness%Repeatability%Agreement
目的 分析一种新型角膜生物力学眼压分析仪Corvis ST测量角膜动态过程中相关参数重复性及一致性,以评估其临床应用的可靠性.方法 前瞻性病例研究.选取47例行准分子激光屈光手术的患者(右眼),由同一检查者应用Corvis ST对被检眼进行检查；其中34例同时进行了眼反应分析仪(ORA)、非接触式眼压计(NCT)及Pentacam眼前节分析仪检查,并进行一致性对比.采用组内相关系数(ICC)和Cronbach's Alpha系数分析Corvis ST测量结果的重复性,采用Bland-Altman分析一致性,采用Pearson线性相关分析Corvis ST测量的生物力学参数与ORA测量的参数、Pentacam测量的角膜中央厚度(CCTst和CCTp)的相关性,采用配对t检验分析差异性.结果 Corvis ST测量的角膜动态过程的变化值中1st A-time、2nd A-time、Vout、HC-DA、IOPst和CCTst的Cranbach's a系数均在0.8以上,组内相关系数也均≥0.8,重复性较好.IOPst与IOPg、IOPcc和IOPnct,CCTst与CCTp均具有较好的一致性,95％的一致性界限分别为(-2.62,4.91)mmHg、(-3.04,6.22)mmHg、(-2.29,4.44)mmHg和(-15.57,13.59)μm.IOPst与IOPg、IOPnct,CCTst与CCTp具有较高相关性(r=0.774、0.791、0.981,P＜0.05).IOPst与IOPg、IOPcc、IOPnct差异有统计学意义,(t=-3.464、-3.922、-3.661,P＜0.05),CCTst与CCTp差异无统计学意义(t=0.778,P＞0.05).1st A-time、Vout和HC-DA与角膜阻力因子(CRF)、角膜滞后量(CH)均有较高相关性(r=0.721、0.520、-0.545、-0.354、-0.596、-0.391,P＜0.05).结论 该型角膜生物力学眼压仪在测量角膜生物动态过程中部分参数显示出较好的重复性,IOPst、CCTst与ORA和Pentacam具有较好的一致性.
目的 分析一種新型角膜生物力學眼壓分析儀Corvis ST測量角膜動態過程中相關參數重複性及一緻性,以評估其臨床應用的可靠性.方法 前瞻性病例研究.選取47例行準分子激光屈光手術的患者(右眼),由同一檢查者應用Corvis ST對被檢眼進行檢查；其中34例同時進行瞭眼反應分析儀(ORA)、非接觸式眼壓計(NCT)及Pentacam眼前節分析儀檢查,併進行一緻性對比.採用組內相關繫數(ICC)和Cronbach's Alpha繫數分析Corvis ST測量結果的重複性,採用Bland-Altman分析一緻性,採用Pearson線性相關分析Corvis ST測量的生物力學參數與ORA測量的參數、Pentacam測量的角膜中央厚度(CCTst和CCTp)的相關性,採用配對t檢驗分析差異性.結果 Corvis ST測量的角膜動態過程的變化值中1st A-time、2nd A-time、Vout、HC-DA、IOPst和CCTst的Cranbach's a繫數均在0.8以上,組內相關繫數也均≥0.8,重複性較好.IOPst與IOPg、IOPcc和IOPnct,CCTst與CCTp均具有較好的一緻性,95％的一緻性界限分彆為(-2.62,4.91)mmHg、(-3.04,6.22)mmHg、(-2.29,4.44)mmHg和(-15.57,13.59)μm.IOPst與IOPg、IOPnct,CCTst與CCTp具有較高相關性(r=0.774、0.791、0.981,P＜0.05).IOPst與IOPg、IOPcc、IOPnct差異有統計學意義,(t=-3.464、-3.922、-3.661,P＜0.05),CCTst與CCTp差異無統計學意義(t=0.778,P＞0.05).1st A-time、Vout和HC-DA與角膜阻力因子(CRF)、角膜滯後量(CH)均有較高相關性(r=0.721、0.520、-0.545、-0.354、-0.596、-0.391,P＜0.05).結論 該型角膜生物力學眼壓儀在測量角膜生物動態過程中部分參數顯示齣較好的重複性,IOPst、CCTst與ORA和Pentacam具有較好的一緻性.
목적 분석일충신형각막생물역학안압분석의Corvis ST측량각막동태과정중상관삼수중복성급일치성,이평고기림상응용적가고성.방법 전첨성병례연구.선취47례행준분자격광굴광수술적환자(우안),유동일검사자응용Corvis ST대피검안진행검사；기중34례동시진행료안반응분석의(ORA)、비접촉식안압계(NCT)급Pentacam안전절분석의검사,병진행일치성대비.채용조내상관계수(ICC)화Cronbach's Alpha계수분석Corvis ST측량결과적중복성,채용Bland-Altman분석일치성,채용Pearson선성상관분석Corvis ST측량적생물역학삼수여ORA측량적삼수、Pentacam측량적각막중앙후도(CCTst화CCTp)적상관성,채용배대t검험분석차이성.결과 Corvis ST측량적각막동태과정적변화치중1st A-time、2nd A-time、Vout、HC-DA、IOPst화CCTst적Cranbach's a계수균재0.8이상,조내상관계수야균≥0.8,중복성교호.IOPst여IOPg、IOPcc화IOPnct,CCTst여CCTp균구유교호적일치성,95％적일치성계한분별위(-2.62,4.91)mmHg、(-3.04,6.22)mmHg、(-2.29,4.44)mmHg화(-15.57,13.59)μm.IOPst여IOPg、IOPnct,CCTst여CCTp구유교고상관성(r=0.774、0.791、0.981,P＜0.05).IOPst여IOPg、IOPcc、IOPnct차이유통계학의의,(t=-3.464、-3.922、-3.661,P＜0.05),CCTst여CCTp차이무통계학의의(t=0.778,P＞0.05).1st A-time、Vout화HC-DA여각막조력인자(CRF)、각막체후량(CH)균유교고상관성(r=0.721、0.520、-0.545、-0.354、-0.596、-0.391,P＜0.05).결론 해형각막생물역학안압의재측량각막생물동태과정중부분삼수현시출교호적중복성,IOPst、CCTst여ORA화Pentacam구유교호적일치성.
Objective To assess the repeatability and agreement of Scheimpflug Noncontact Tonometry (Corvis ST) on normal subjects.Methods Forty-seven myopic subjects (right eye) were enrolled in this prospective study with Scheimpflug Noncontact Tonometry (Corvis ST).The right eyes of 34 myopic subjects were measured by the Ocular Response Analyser (ORA),non-contanct tonometer (NCT) and Pentacam.The repeatability of data was analyzed by intraclass correlation coefficient (ICC) and Cronbach's Alpha coefficients,and the data were compared using a paired t test,the Pearson correlation test and Bland-Altman plot.Results The ICC and Cronbach's Alpha coefficients of 1st A-time,2nd A-time,Vout,HC-DA,IOPst and CCTst were more than 0.8,which showed high intraobserver repeatability.The Bland-Ahman plots displayed relatively good agreement between IOPst and IOPg,IOPst and IOPcc,IOPst and IOPnct,and CCTst and CCTp.The 95％ limits of agreement were-2.62 to 4.91 mmHg,-3.04 mmHg to 6.22 mmHg,-2.29 to 4.44 mmHg and-15.57 to 13.59 μm.A positive correlation was found between IOPst and IOPg,IOPst and IOPnct,and CCTst and CCTp (r=0.774,0.791,0.981,P＜0.05).Significant differences were found between IOPst and IOPg,IOPcc,IOPnct (t=-3.464,-3.922,-3.661,P＜0.05),but there was no significant difference between CCTst and CCTp (t=0.778,P＞0.05).Pearson analysis showed a high correlation between 1st A-time,Vout,HC-DA and CRF,CH (r=0.721,0.520,-0.545,-0.354,-0.596,-0.391,P＜0.05).Conclusion In healthy eyes,the repeatability of some parameters using Scheimpflug Noncontact Tonometry (Corvis ST) is good.The agreement between Corvis ST and ORA and Pentacam was high.
