山东大学耳鼻喉眼学报 ›› 2010, Vol. 24 ›› Issue (01): 54-.

• 论文 • 上一篇    下一篇

超声生物显微镜在青少年挫伤性近视发病机制的应用研究

朱子诚,柯根杰,潘红飙   

  1. 安徽医科大学附属省立医院眼科, 合肥 230001
  • 收稿日期:2009-09-14 修回日期:2009-12-01 出版日期:2010-02-16 发布日期:2010-02-16
  • 作者简介:朱子诚(1968- ),博士,主治医师,主要从事眼屈光、玻璃体视网膜病、白内障的研究。 Email:zczhu123@yahoo.com.cn

Study of the mechanism of traumatic myopia in teenagers using ultrasound bio-microscopy

ZHU Zicheng, KE GenJie, PAN Hongbiao   

  1. Departmentt of Ophthalmology, Affiliated Anhui Provincial Hospital of Anhui Medical University,  Hefei 230001, China
  • Received:2009-09-14 Revised:2009-12-01 Online:2010-02-16 Published:2010-02-16

摘要:

目的  利用超声生物显微镜(UBM)初步探讨青少年挫伤性近视的发病机制。方法  随机选取伤后表现为近视患者24例26眼,分别在急性期(伤后3d内)和恢复期(伤后2星期)测量屈光度、晶体厚度,UBM 检测角膜厚度、前房轴深、小梁睫状突距离(TCPD)、A角、睫状突的高度(T值)。同时对20眼正常对照组进行2次上述测量,间隔15d。结果  近视度随眼挫伤的好转而下降;晶体厚度、前房轴深、小梁睫状突距离(TCPD)、A角、睫状突的高度(T值)在急性期和恢复期差异均有统计学意义(P<0.05),而角膜厚度无明显变化(P>0.05)。结论   睫状肌痉挛,前房变浅,晶体变凸是青少年挫伤性近视的共同机制。而睫状突肿胀、睫状体位置的改变是导致前房变浅、晶体变凸的原发因素。UBM可精确测定反映睫状突位置和高度的变化,对定量测量挫伤性近视的形态变化,具有重要的临床价值

关键词: 超声生物显微镜;眼损伤;近视;发病机制

Abstract:

Objective  To approach the mechanisms of traumatic myopia using ultrasound biomicroscopy(UBM).  Methods  24 cases(26 eyes) with blunt eye trauma were included in this study. Refraction and lens thickness were measured respectively with an autorefractometer and A-scan ultrasoundgraphy in the acute(3 days after blunt eye injury) and convalescent stages(2 weeks after injury). The cornea thickness(CT), central anterior chamber depth(CACD), trabecular ciliary process distance (TCPD), A-angle(AA) and the T values(TV) were measured by ultrasound bio-microscopy (UBM). 20 normal eyes as the control group were measured twice as  mentioned above. Results  The refraction, lens thickness, anterior chamber depth, TCPD, A-angle and T values had statistical difference between the acute and convalescent stages(P<0.05) but cornea thickness had no change(P>0.05).  Conclusion  The mechanisms in traumatic myopia are related with ciliary spasm, shallower anterior chamber and thickened lens. But primitive factors resulting in these changes are diffuse edema of the ciliary body and anterior rotation of the entire ciliary body. UBM can measure  pathological changes in traumatic myopia and has important clinical value.

Key words: Eltrasound bio-microscopy ;Eye injury; Myopia;Pathogenesis

中图分类号: 

  • R779.6
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