Quantitative evaluation of iris convexity in primary angle closure
Quantitative evaluation of iris convexity in primary angle closure
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DOI：
10.1016/j.ajo.2006.11.018
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发表时间：
2007-04-01
影响因子：
4.2
通讯作者：
Kurimoto, Yasuo
中科院分区：
文献类型：
--
作者：
Nonaka, Atsushi;Iwawaki, Takuji;Kurimoto, Yasuo
中心点目的：在眼睛原发性房角关闭（PAC），我们定量评估前弓的虹膜通过超声生物显微镜（UBM）。中心点设计：回顾性，观察性，连续的情况下series.center点方法：共203有晶状体眼PAC没有经历任何手术或激光治疗。使用UBM，我们测量了前房深度（ACD）和虹膜凸度（IC）：从虹膜后表面到虹膜平面通过虹膜和虹膜瞳孔边缘的最大距离。结果：平均IC为0.22 +/- 0.1 mm，尽管存在相当大的个体差异。root.center IC值与年龄（r = 0.22，P <0.01）相关性弱，但与ACD（r =-0.57，P <0.0001）相关性强。中心点结论：在患有PAC的眼睛中，年龄较大和较浅的ACD似乎是瞳孔阻滞导致虹膜向前弯曲增加的重要原因。
center dot PURPOSE: In eyes with primary angle closure (PAC), we quantitatively evaluated anterior bowing of the iris by means of ultrasound biomicroscopy (UBM).center dot DESIGN: Retrospective, observational, and consecutive case series.center dot METHODS: A total of 203 phakic eyes with PAC that had not undergone any surgical or laser treatment were included. Using UBM, we measured anterior chamber depth (ACD) and iris convexity (IC): the maximum distance from the posterior surface of the iris to the iris plane passing through the pupillary margin of the iris and iris root.center dot RESULTS: The average IC was 0.22 +/- 0.1 mm, although there was considerable individual variation. The IC value was correlated weakly, albeit significantly, with age (r = 0.22, P < .01), and strongly with ACD (r = -0.57, P < .0001).center dot CONCLUSIONS: In eyes with PAC, older age and a more shallow ACD appear to be important causes of increased forward bowing of the iris resulting from pupillary block.