改良Van Herick前房角宽度评估法的临床观察

Clinical observation of Van Herick method for evaluating anterior chamber angle width

摘要:

目的：探讨在Van Herick法基础上更方便准确评估前房角宽度的方法。方法：纳入2021-01/12于我院就诊的年龄相关性白内障患者58例69眼，参考Van Herick法分为房角宽度≥1/2颞侧角膜厚度(CT)组(37例44眼)和<1/2CT组(21例25眼)，应用超声生物显微镜测量中央前房深度和周边房角度数。结果：房角宽度≥1/2CT组和<1/2CT组患者中央前房深度有明显差异(2.64±0.27 mm vs 2.23±0.29 mm，P<0.01)，且两组间上方、颞侧、下方和鼻侧象限房角度数均有明显差异(P<0.01)。房角宽度≥1/2CT组患者上方与下方象限房角度数无显著差异(P>0.05)，其余各象限房角度数均有差异(P<0.05)； 房角宽度<1/2CT组患者上方与鼻、颞侧象限，下方与颞侧象限房角度数均有差异(P<0.05)。结论：裂隙灯下采用Van Herick法评估颞侧房角宽度，同时评估下方象限房角宽度，可以更简单、快速、准确地评估前房角的整体情况。

Abstract:

AIM: To explore a more convenient and accurate method for evaluating the anterior chamber angle width based on the Van Herick method.METHODS:A total of 58 patients(69 eyes)with age-related cataract who visited our hospital between January and December 2021 were included. They were divided into the chamber angle width ≥1/2 corneal thickness(CT)group(44 eyes of 37 cases)and <1/2CT group(25 eyes of 21 cases)according to the Van Herick method. The central anterior chamber depths and the peripheral anterior chamber angle degrees were measured by ultrasound biomicroscopy.RESULTS: There were statistically significant differences in central anterior chamber depth between the two groups(2.64±0.27 mm vs. 2.23±0.29 mm, P<0.01), and the differences of chamber angle degrees of quadrants of superior, temporal, inferior and nasal compared between two groups were all statistically significant(P<0.01). The difference of chamber angle degrees of quadrants of superior and inferior in chamber angle width ≥1/2CT group was not statistically significant(P>0.05), while the differences of chamber angle degrees of other quadrants were all statistically significant(P<0.05). The differences of chamber angle degrees of quadrants of superior and nasal, temporal and the chamber angle degrees of quadrants of inferior and temporal were all statistically significant in chamber angle width <1/2CT group(P<0.05).CONCLUSION: In the overall evaluation of the anterior chamber angle, it would be more simple, fast and accurate when evaluating the temporal chamber angle width and inferior quadrant of chamber angle width by using the Van Herick method under silt lamp.