| 采用OCT测量正常人视盘黄斑中心凹夹角 |
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ormal Chinese people was 0.5614.29°, the average value was (7.35±2.15)°.There was no significant difference for DFA among three age groups. DFA of right eye and left eye was (7.43±2.46)° and (7.27±2.45)°respectively, there was no significant difference for DFA between right eye and left eye. DFA of male and female was (7.41±2.21)°and (7.28±2.10)°respectively. There was no significant difference for DFA between male and female. CONCLUSION: Measurement of DFA by using OCT is a new method of observing the ocular torsion.
KEYWORDS: discfovea angle; optical coherence tomography; ocular torsion
0引言
旋转性斜视是发生在眼球环绕视轴不正常旋转时的斜视,常由内旋肌（上斜肌、上直肌）和外旋肌（下斜肌、下直肌）之间的平衡失调引起。通过测量视盘—黄斑中心凹夹角（discfovea angle，DFA）可以客观判断是否存在旋转性斜视[1,2]。DFA的测量有裂隙灯前置镜、眼底照相等方法[3,4]。采用光学相干断层扫描仪（OCT）可在非散瞳状态下观察并记录黄斑与视盘的相对位置[5]。我们应用OCT采集正常人眼底像并测量DFA，对采集的数据进行统计分析。报告结果如下。
1对象和方法
1.1对象
随机检查眼科门诊正常人198例396眼，年龄12～60岁，以18岁、40岁为界分 上一页 [1] [2] [3] [4] [5] 下一页 |
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