应用超声生物显微镜对挫伤性近视发病机制的研究  

Study of pathogenesis of myopia after blunt eye trauma using ultrasound biomicroscope

作　　者：赵霞[1,2] 管永清[1] 郁丽娟[3] 石国强[3] 卢志勇[3] 

机构地区：[1]河北医科大学第四医院眼科,石家庄050010 [2]河北医科大学 [3]唐山市眼科医院

出　　处：《临床眼科杂志》2008年第2期113-116,共4页Journal of Clinical Ophthalmology

摘　　要：目的应用超声生物显微镜(UBM)并结合普通超声波,初步探讨挫伤性近视的发病机制。方法对51例(66只眼)眼球钝挫伤患者,在急性期和恢复期分别用自动验光仪测量屈光度;A超测量晶状体厚度;UBM测量角膜厚度、前房轴深、小梁睫状突距离(TCPD)、A角、睫状突的高度(T值);66例正常眼为对照进行分析。结果眼球受钝挫伤后均表现为近视;且急性期晶状体变厚、前房变浅、TCPD缩短、A角变小、T值增大(P<0.05);而角膜厚度变化不明显(P>0.05)。对照组各参数比较无明显差异(P>0.05)。结论挫伤性近视的发病有诸多因素。除睫状肌痉挛外,前房变浅、晶状体变凸是共同机制;而睫状体肿胀及位置的改变是原发因素;UBM具有重要的临床应用价值。Objective We used Ultrasound Biomicroscope （UBM） and A-scan ultrasoundgraphy to investigate the pathogenesis of myopia after blunt eye trauma. Methods A total of S1 patients, including 66 eyes, were diagnosed clinically as blunt eye trauma. Refraction was measured with an autorefractometer in the acute and convalescent stages after a blunt eye injury. The lens thickness were also measured by A-scan ultrasoundgraphy in the acute and convalescent stages. The cornea thickness.anterior chamber depth、TCPD、A-angle and the T values were examined by UBM in the acute and convalescent stages. At the same time, 66 normal eyes were measured twice as the control group. Results All 66 eyes were diagnosed as traumatic myopia and have lens thickened、 shallow central anterior chamber、TCPD reduced、Small A-angle large T value in the acute stages. But the difference of the cornea thickness between the the acute and convalescent stages was not significant . The control group was measure twice in the same way. When parameters were compared, the difference was not significant . Conclusion Ciliary spasm cannot be the only mechanism for the traumatic myopia; The trauma myopia eyes had their same pathogenesis with shallower anterior chamber and thickened lens ; And the change of location and height in the ciliary body was initial factor; UBM has important value.

关 键 词：超声生物显微镜 眼挫伤 近视 发病机制 

分 类 号：R779.1[医药卫生—眼科]