摘要
目的:通过对白内障患者行Phaco+IOL手术前后A超和IOL-Master的眼球生物测定值的动态对比观察,经统计分析其临床意义。方法:连续动态观察本院固定手术(Phaco+IOL术)患者70例84眼。采用A超和IOL-Master分别对术前、术后14d患者眼球生物值测定,包括:眼轴长度、前房深度、晶状体厚度、玻璃体腔深度。并对手术前后患者坐、卧位的眼球生物值进行对比观测,分别对各项生物测定值进行统计学分析。结果:(1)前房深度:术后比术前前房平均加深28.41%,前房深度加深改变与晶状体厚度呈正相关(r=0.396,P=0.002,n=58),进行线性模拟表示:前房加深深度=0.445×晶状体厚度-1.207;(2)A超测定手术前后坐、卧位前房深度的差异无统计学意义(P=0.264,n=57;P=0.663,n=44);(3)A超、IOL-Master术前前房深度测定有显著统计学意义(P<0.01,n=29),A超测得均值为:2.75±0.57mm,Master测得均值为:2.96±0.61mm,差值为:-0.21±0.29mm,两者差值的95%CI为:(-0.32～0.10mm);(4)A超、IOL-Master术后前房深度测定有显著统计学意义(P=0.002,n=41),A超测得均值为:3.46±0.46mm,Master测得均值为:3.79±0.65mm,差值为:-0.33±0.63mm,两者差值的95%CI为:(-0.53～0.14mm);(5)A超测定手术前后前房深度改变与IOL-Master手术前后前房深度改变的差异无统计学意义(P=0.619,n=19)。眼轴:(1)A超测定手术前后眼轴长度无统计学差异(P=0.079,n=58);(2)术前、术后A超坐、卧位测定眼轴长度无统计学意义(P=0.934,n=57;P=0.196,n=44);(3)A超、IOL-Master术前、术后眼轴长度测定均没有统计学意义(P=0.175,n=17;P=0.248,n=31)。结论:Phaco+IOL患者手术前后前房深度改变显著且与晶状体厚度呈正相关,术后比术前前房平均加深28.41%;除前房深度外,常规A超眼球生物测定值与IOL-Master眼球生物测定值相一致。另外,患者的体位对A超测定结果基本无影响。
AIM：To compare the biometry measurements of IOL-Master and A-scan ultrasound in patients with cataract surgery,and analyze its clinical significance.METHODS：Dynamic observation was conducted in 84 eyes of 70 cataract patients by same operator.Measurements were made before and 14 days after the operation by IOL-Master optical instrument（Carl Zeiss）and Ultrascan Digital 2000 contact ultrasound A-scan（Alcon）,respectively,which included axial length（AL）,anterior chamber depth（ACD）,and crystal thickness.Simultaneously,a prospective comparison of measurements was made by A-scan ultrasound in sitting and decubitus position.RESULTS：ACD：（1）Average depth of postoperation increased by 28.41% compared with that before operation.The operational devation of ACDs was correlated with crystal thickness positively（r=0.396,P=0.002,n=58）,Linear analog representation showed that the operational devation of ACD=0.445×crystal thickness-1.207（mm）;（2）There was no statistical significance of ACDs before and after operation measured by A-scan ultrasound in sitting and decubitus position（P=0.264,n=57;P=0.663,n=44）;（3）The preoperation ACD values measured by the IOL-Master was deeper than that measured by A-scan ultrasound（P〈0.01,n=29）,mean value by A-scan ultrasound：2.75±0.57mm,mean value by the IOL-Master：2.96±0.61mm,difference in values was-0.21±0.29mm,95%CI：（-0.32-0.10mm）;（4）The postoperation ACD values given by the IOL-Master was deeper than that by A-scan ultrasound（P=0.002,n=41）,mean value by A-scan ultrasound：3.46±0.46mm,mean value by the IOL-Master：3.79±0.65mm,difference in values was-0.33±0.63mm,95%CI：（-0.53-0.14mm）;（5）There was no statistical significance of ACD changes before and after operation measured by A-scan ultrasound and IOL-Master respectively（P=0.619,n=19）.AL：（1）The ALs before and after operation were not significantly different（P=0.079,n=58）;（2）Before and after operation,the difference of AL values measured by A-scan ultrasound in sitting and decubitus position both were not significant（P=0.934,n=57;P=0.196,n=44）;（3）Before and after operation,the difference of AL values measured by the IOL-Master and by A-scan ultrasound both were not significant（P=0.175,n=17;P=0.248,n=31）.CONCLUSION：The postoperative average depth increased by 28.41% than preoperative,and the operational devation of ACDs was correlated with crystal thickness positively.The biometry measurements of IOL-Master and A-scan ultrasound in patients with cataract surgery was same except ACDs.In addition,different measuring positions have no influence on the result of A-scan ultrasound measure.
出处
《国际眼科杂志》
CAS
2011年第4期608-610,共3页
International Eye Science
