Clock position-based iris bow configuration after laser peripheral iridotomy in Chinese angle closure eyes: a swept source optical coherence tomography study
Clock position-based iris bow configuration after laser peripheral iridotomy in Chinese angle closure eyes: a swept source optical coherence tomography study
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中国人闭角眼激光周边虹膜切开术后基于时钟位置的虹膜弓配置：扫描源光学相干断层扫描研究
DOI：
10.1038/s41433-019-0601-1
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发表时间：
2019-09
期刊：
影响因子：
--
通讯作者：
Xiulan Zhang
中科院分区：
文献类型：
--
作者：
shida chen;Yaoming Liu;Fei Li;Kai Gao;Rouxi Zhou;Xiulan Zhang
为了确定在主闭角眼LPI后需要多少测量值来确定虹膜弓，并评估虹膜弓在12个时钟位置的变化。方法93例中国患者共93只初级闭角眼。在LPI前、LPI后1周和3个月，分别在12个时钟位置和4个时钟位置（3,6,9和12点）使用扫描源光学相干断层扫描评估虹膜前弯曲。结果在基线上，当使用12个时钟位置测量时，几乎所有的眼睛都表现出虹膜弓形，与使用4个时钟位置测量的结果一致（Cronbach’s alpha = 0.99）。除了LPI位点外，LPI引起所有时钟位置相对统一的变化（Cronbach’s alpha = 0.91）。LPI后，12次和4次时钟位置测量的虹膜弓无显著差异（均为0.05），1周时约34.1% vs 33%的患者保持虹膜弓，3个月时34% vs 31.9%的患者保持虹膜弓。然而，当使用4个时钟位置时，共存的虹膜弓形更常见（1周时16.5% vs. 3.3%， 3个月时25.5% vs. 10.6%）。结论在4、12个时钟位置测量虹膜弓形具有良好的一致性。LPI在12个时钟位置引起了相对统一的虹膜弓形变化，单个LPI仅缓解了约2/3的虹膜弓形构型。
BackgroundTo determine how many measurements should be evaluated to determine the iris bow and evaluate changes of iris bow at 12 clock positions after LPI in primary angle closure eyes.MethodsA total of 93 primary angle closure eyes in 93 Chinese patients were enrolled. Anterior iris bowing was evaluated at 12 clock positions and 4 clock positions (3, 6, 9, and 12 o’clock) before, 1 week and 3 months after LPI using swept source optical coherence tomography.ResultsAt baseline, almost all of the eyes exhibited an iris bow when measured using 12 clock positions, consistent with results obtained from measurements at 4 clock positions (Cronbach’s alpha = 0.99). LPI caused a relative unified change in all of the clock positions (Cronbach’s alpha = 0.91) except the LPI site. After LPI, there was no significant difference between 12 and 4 clock position measurements for the iris bow (bothp> 0.05), with ~34.1% vs. 33% of the patients remained iris bow at 1 week and 34% vs. 31.9% of the patients remained iris bow at 3 months. However, the coexisting iris bow configuration was more common when measured using 4 clock positions (16.5% vs. 3.3% at 1 week and 25.5% vs. 10.6% at 3 months).ConclusionsThere was excellent consistency when measuring the iris bow at 4 or 12 clock positions. LPI caused a relatively unified iris bow change at 12 clock positions, and a single LPI relieved only ~2/3 of the iris bow configurations.
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影响因子：
13.7
作者：
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通讯作者：
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4.2
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影响因子：
4.2
作者：
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通讯作者：
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