PURPOSE To investigate the reproducibility for the iridocorneal angle evaluations using the pictures obtained by a gonioscopic camera, Gonioscope GS-1 (Nidek Co., Gamagori, Japan). METHODS The pragmatic within-patient comparative diagnostic evaluations for 140 GS-1 gonio-images obtained from 35 eyes of 35 patients at four ocular sectors (superior, temporal, inferior, and nasal angles) were conducted by five independent ophthalmologists including three glaucoma specialists in a masked fashion twice, 1 week apart. We undertook the observer agreement and correlation analyses of Scheie's angle width and pigmentation gradings and detection of peripheral anterior synechia and Sampaolesi line. RESULTS The respective Fleiss' kappa values for the four elements between manual gonioscopy and automated gonioscope by the glaucoma specialist were 0.22, 0.40, 0.32 and 0.58. Additionally, the respective intraobserver agreements for the four elements by the glaucoma specialist each were 0.32 to 0.65, 0.24 to 0.71, 0.35 to 0.70, and 0.20 to 0.76; the Fleiss' kappa coefficients for the four elements among the three glaucoma specialists were, respectively, 0.31, 0.38, 0.31, and 0.17; the Fleiss' kappa coefficients for the angle width and pigmentation gradings between the two glaucoma specialists each were 0.30 to 0.35, and 0.29 to 0.43, respectively. Overall, the Kendall's tau coefficients for the angle gradings reflected the positive correlations in the evaluations. CONCLUSION Our findings suggested slight-to-substantial intraobserver agreement and slight-to-fair (among the three) or fair-to-moderate (between the two each) interobserver agreement for the angle assessments using GS-1 gonio-photos even by glaucoma specialists. Sufficient training and a solid consensus should allow us to perform more reliable angle assessments using gonio-photos with high reproducibility.

中文翻译：

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使用自动360度gonio-photos进行前房角度评估之间的观察者内和观察者间一致性。

目的使用角膜镜摄像机Gonioscope GS-1（Nidek Co.，日本蒲郡，日本）获得的图片，研究虹膜角膜角评估的可重复性。方法由五名独立的眼科医师（包括三名青光眼专家）对三名眼科四个眼部（上，颞，下和鼻角）的35例患者的35眼获得的140 GS-1角膜图像进行了实用的患者比较诊断评价。两次蒙版，相隔1周。我们进行了观察者的协议，并进行了Scheie角宽度和色素沉着程度的相关性分析，并检测了周围前粘连和Sampaolesi线。结果青光眼专家在手动测角镜和自动测角镜之间的四个要素的Fleiss卡伯值分别为0.22，0.40、0.32和0.58。此外，青光眼专家对这四个要素的观察者内部协议分别为0.32至0.65、0.24至0.71、0.35至0.70和0.20至0.76；在三名青光眼专家中，这四个要素的弗莱斯卡帕系数分别为0.31、0.38、0.31和0.17；两名青光眼专家之间的角宽度和色素沉着等级的弗莱斯卡帕系数分别为0.30至0.35和0.29至0.43。总体而言，角度分级的肯德尔tau系数反映了评估中的正相关性。结论我们的研究结果表明，对于使用GS-1角照片甚至青光眼进行的角度评估，观察者之间的观察者之间的一致性达到轻微至基本水平，而三个人之间则达到中等至中等水平（彼此之间）或中等至中等（彼此之间）。专家。足够的培训和牢固的共识应该使我们能够使用高再现性的角照片来进行更可靠的角度评估。