A超分段测量法及IOLMaster在硅油填充眼生物测量中的应用  

The application of A-scan echography and IOLMaster on biometry of the silicone

作　　者：潘颖喆[1] 高丰[1] 王慧[1] 

机构地区：[1]湖北医药学院附属襄阳医院襄阳市第一人民医院眼科,湖北襄阳441000

出　　处：《中华眼外伤职业眼病杂志》2012年第5期349-353,共5页Chinese Journal of Ocular Trauma and Occupational Eye Disease

摘　　要：目的评价应用A超分段测量法及光学相干生物测量仪（IOLMaster）对硅油填充眼进行生物测量的准确性。方法前瞻性选取2008年1月至12月拟行硅油取出术的患者总共29例29眼，手术前、后使用眼科A／B超及IOLMaster两种方式测量眼轴，并分别进行比较；A超分段测量法计算公式为：硅油填充眼的眼轴长度=前房深度＋晶状体厚度＋0．644×硅油泡的表观长度（声速值1532m／s）＋硅油泡下水层的厚度。结果用眼科A超分段测量法测得手术前、后的眼轴长为（26．11±2．85）mm、（26．06±2．80）mm，其差值为（0．06±0．27）mm（P=0．226）；IOLMaster测得手术前、后的眼轴长为（26．37±2．80）mm、（26．29±2．77）mm，其差值为（-0．04±0．15）mm（P=0．315）；IOLMaster测得的术前和术后眼轴长与术后A超眼轴长差值分别为（0．18±0．17）mm（P〈0．01）、-0．23±0．13mm（P〈0．01）。两种方法在术前术后测得的眼轴长度结果均显示高度相关（相关系数〉0．99）。结论A超分段测量法及IOLMaster均可对硅油填充眼进行准确可靠的眼轴测量。Objective To evaluate the accuracy of the biometry using A-scan echography and partial coherence interferometry （ IOL Master） for the axial length （AL） of silicone oil-filled eyes respectively. Methods Twenty-nine silicone oil-filled eyes in 29 patients were included in the study. All of these eyes underwent silicone oil removal. The AL of all the silicone oil-filled eyes were measured with A-scan echography and IOL Master before and after operation. The formula was ： AL = Anterior chamber depth ± Lens thickness ±0. 644 x the apparent length of oil bubble（ velocity values 1532 m/s） ± The depth of the water layer beneath the oil bubble. Results The pre-and post-surgical ALs measured by echography were （26.11 ± 2.85 ） mm, （ 26.06 ± 2.80 ） ram, and the difference was （ 0.06 ± 0.27 ）mm without statistical significance （ P = 0. 226）. The pre-and post-surgical ALs measured by IOL Master were （26.37 ± 2.80） mm, （ 26.29 ± 2.77） ram, and the difference was （ - 0.04 ± 0. 15 ） mm without statistical significance （ P = 0.315 ）. The difference between pre-surgical ALs by IOL Master and post-surgical ALs by echography was （0.18 ± 0.17 ）mm with statistical significance （P 〈0.01 ）. The difference of post-surgical ALs between two methods was （ -0.23 ± 0.13 ） mm with statistical significance （P 〈 0. 01 ）. The ALs measured by the two methods were highly correlative （ correlation coefficient 〉 0.99 ）. Conclusion The AL of eyes tamponaded with silicone oil can he measured reliably with A-scan echography and IOL Master.

关 键 词：硅油填充眼 生物测量 A型超声 IOL Master 白内障 

分 类 号：R779.6[医药卫生—眼科]