超声生物显微镜动态检查前房角方法的研究

Study on the Dynamic Examination of Anterior Chamber Angle by Ultrasound Biomicroscopy

目的:研究影响超声生物显微镜(UBM)检查前房角的因素,探讨一种动态的鉴别检查方法。方法:研究不同光照条件下,高危前房角组和粘连房角组的前房角UBM形态学改变特征。结果:常规光照条件下,高危前房角组部分病例(9/12)虹膜高度膨隆,房角入口极端狭窄,但仍保持开放;部分病例(3/12)和粘连房角组(15/15)均表现为房角关闭;强光光照至瞳孔缩小后,高危前房角组房角全部开放,粘连组房角仍保持关闭。结论:不同光照条件显著影响超声生物显微镜对前房角的检查,对常规光照条件下表现为关闭的房角,应对比鉴别不同光照条件下房角形态动态改变的特征,避免误诊。本文也讨论了影响UBM检查的因素。眼科学报1998;14:204～206。

Purpose :To study the factors that influence ultrasound biomicroscopy(UBM) examination on anterior chamber angle,and explore a dynamic differentiating method. Method:To compare the UBM morphologic characters of the anterior chamber angle of the high-risk chamber angle and adhered angle groups under different illumination. Result: Under routine working condition,some eyes of the high-risk-group(9/12)dis-played bombing iris with extremely narrowly-opened angle; but 3/12 cases and the control group showed bombing iris and closed angle. Under bright circumstance, all angles of the high-risk group showed widelyopened , but the control group remained closed. Conclusion: Different illumination influences the UBM examination of the anterior chamber angle significantly, we should differentiate the angle morphologic characters under different illumination if it seems to be closed. Factors that affect the UBM examination were also disscused. Eye Science 1998; 14 :204 - 206.