硅油填充眼眼轴长度浸润式B型超声引导下分段声速测量与光学激光生物仪测量结果比较  

The comparison of immersion B-scan guided with respective sonic velocity and Lenstar LS900 onmeasurement of axial length in silicone oil-filled eyes

作　　者：武斌[1] 陈松[1] 刘洋辰[1] 李岩[1] 高建民[1] 李君慧 何广辉[1] 

机构地区：[1]天津医科大学眼科临床学院天津市眼科医院天津市眼科学与视觉科学重点实验室天津市眼科研究所,300020

出　　处：《中华眼底病杂志》2017年第6期605-608,共4页Chinese Journal of Ocular Fundus Diseases

摘　　要：目的对比观察硅油填充眼眼轴长度（AL）浸润式B型超声引导下分段声速测量与光学激光生物测量仪（Lenstar LS900）测量结果，探讨浸润式B型超声引导下分段声速测量对于硅油填充眼AL测量的准确性。方法前瞻性研究。拟行硅油取出、白内障摘除及人工晶状体植入手术的35例患者38只眼纳入研究。所有患眼均合并不同程度的白内障。手术前采用MD-2300S型眼科A型和（或）B型超声行浸润式B型超声引导下分段声速测量法测量患眼AL。AL为角膜厚度、前房深度、晶状体厚度、硅油泡的表观长度、硅油泡下水层厚度的总和。同时采用Lenstar LS900测量患眼AL。所有患眼均顺利完成硅油取出、白内障摘除及人工晶状体植入手术，随诊至手术后3个月均未见并发症发生。手术后3个月，重复应用Lenstar LS900测量患眼AL。对比观察两种测量方法测得AL数据的差异及一致性。结果38只眼中，手术前经Lenstar LS900测得AL31只眼；因晶状体混浊、AL超过Lenstar LS900测量范围未能测得AL7只眼。31只眼的平均AL为（24.12±1.70）mm。手术后3个月经Lenstar LS900测得AL36只眼；AL超过Lenstar LS900测量范围未能测得AL 2只眼。36只眼的平均AL为（24.45±1.89）mm。患眼手术前后AL差值为（0.02±0.07）mm，差异无统计学意义（t=1.752，P＞0.05）。手术前所有患眼均经浸润式B型超声引导下分段声速测量法测得AL。患眼平均AL为（24.87±2.52）mm。与手术前Lenstar LS900测得AL比较，两者差值为（？0.00±0.09）mm，差异无统计学意义（t=？0.205，P＞0.05）；与手术后3个月Lenstar LS900测得AL比较，两者差值为（？0.02±0.11）mm，差异无统计学意义（t=？1.280，P＞0.05）。两种测量方法测量硅油填充眼的AL具有良好的一致性（〈inline-formula〉$／bar d$〈graphic xmlns：xlink=＂http：//www.w3.org/1999/xlink＂ xlink：href=＂zhydbzz-33-6-wubin_M1.jpg＂/〉〈gObjectiveTo evaluate the accuracy of the biometry using immersion B scan and partial coherence interferometry （Lenstar LS900） for the axial length （AL） of silicone oil-filled eyes respectively.MethodsThirty-five silicone oil-filled eyes （38 patients） were included in the study. All of these eyes underwent silicone oil removal, cataract extraction and intraocular lenses implantation. The AL of all the silicone oil-filled eyes was measured with A/B-scan ultrasound and Lenstar LS900 before operation and with Lenstar LS900 after operation. The measured distance was compared respectively. The method of immersion B-scan guided with respective sonic velocity. AL was the sum of corneal thickness, anterior chamber depth, lens thickness, the apparent length of oil bubble （velocity values 996 m/s）, the depth of the water layer beneath the oil bubble.ResultsThirty-one eyes were measured with Lenstar LS900 before silicone oil removal, and the mean AL was （24.12±1.70） mm, 7 eyes failed to get the results before the operation; 36 eyes were measured with Lenstar LS900 after silicone oil removal, and the mean AL was （24.45±1.89） mm. All eyes were measured with B-scan before silicone oil removal, and the mean AL was （24.87±2.52） mm. The difference （31 eyes） of AL measurement before silicone oil removal by two methods was （？0.00±0.09） mm; the difference （31 eyes） between pre- and post-surgical AL measurement with Lenstar LS900 was （0.02±0.07） mm; the difference （36 eyes） between pre-surgical AL measured with B-scan and post-surgical AL measured with Lenstar LS900 was （？0.02±0.11） mm. All the differences were not statistically significant （t=？0.205, 1.752, ？1.280; P＞0.05）. The consistency of the results measured by two methods was well in Bland-Ahamn analysis.ConclusionsMeasurement results of AL between immersion B-scan guided with respective sonic velocity and Lenstar LS900 are high repeatability on silicone oil-filled eyes. The AL of silicone oil-filled eyes c

关 键 词：轴长度 眼 硅油类 超声检查/方法 

分 类 号：R779.6[医药卫生—眼科]