超声生物测量在白内障手术的应用研究  

Clinical Study on Relationship of Biometry Measuring and Intraocular Lens Power

作　　者：崔冬梅[1] 许孝义[1] 李运[1] 肖瑛[1] 毛瑞和[1] 

机构地区：[1]山东大学第二医院眼科,济南250033

出　　处：《生物医学工程研究》2002年第1期36-37,共2页Journal Of Biomedical Engineering Research

摘　　要：研究单纯应用A超和B超转换为A超测量老年性白内障的眼轴长度 ,计算对应的IOL度数 ,分析其精确性。选取老年性白内障 5 1只眼。分别用A超和B超转换为A超的方法测量眼轴长度。计算出相应的IOL度数。给患者行白内障手术 ,植入IOL ,IOL度数全部选用单纯用A超测出的数值。术后 3个月电脑验光 ,然后与B超转换为A超所测得数值相比较 ,分析哪种方法所测得的数据更准确。结果 :单纯应用A超测算的老年性白内障的IOL度数 ,术后 3个月实际屈光度与预计屈光度的差值 ,和用B超转换为A超测算的结果相比较在眼轴长 2 2mm≤L≤ 2 6mm之间无显著性差异 ,而在L≥ 2 6mm有显著性差异。结论 :用B超转换为A超的方法测算IOL度数对于高度近视并发老年性白内障患者在行手术时IOL的选择更有意义。This study was conducted to evaluate the relationship between IOL power and axial length which measured by A-biometry and B-mode-guided vector A-biometry. 51 patients with age-related cataract were measured their axial length with A-biometry and B-mode-guided vector A-biometry and calculated the IOL power. Then the patients were undergone cataract surgery and implanted IOL. The IOL power were adopted the numerical values which measured by A-biometry.Optometry with computer was carried three months after operation. Results:The IOL pwoer were measured by A-biometry compared with that measured by B-mode-guided vector A-biometry.It make out that in axial length≥26mm,the numerical values which measured by two methods have distinct difference.But in 22mm≤axial length≤26mm,there are no distinct difference. It is concluded that the IOL power which calculated by B-mode-buided vector A-ultrasound has more significance than which calculated by A-biometry in age-related cataract connecting high myopia surgery.

关 键 词：老年性白内障 AB型超声 IOL测算 眼轴 

分 类 号：R77[医药卫生—眼科]