Simiera Justyna, Loba Piotr
Department of Ophthalmology, Medical University of Lodz, Poland; Department of Binocular Vision Pathophysiology and Strabismus, Medical University of Lodz, Poland.
Department of Ophthalmology, Medical University of Lodz, Poland.
J AAPOS. 2017 Aug;21(4):305-308. doi: 10.1016/j.jaapos.2017.02.009. Epub 2017 Jun 28.
To present a novel, free, web-based software tool (www.cyclocheck.com) for the assessment of objective cyclodeviation, based on measuring the disk-foveal angle (DFA) and to evaluate reproducibility of the results.
Digital fundus photographs of both eyes of all study subjects were obtained using DRS CenterVue nonmydriatic fundus camera. Four separate measurements were made for each eye, and the DFA was calculated using Cyclocheck software independently by two observers to determine reproducibility and repeatability of the technique. The results were statistically analyzed using the interclass correlation coefficient (ICC) and the Bland-Altman method.
A total of 32 subjects (mean age, 34.4; range, 12-83) were enrolled: 18 were orthophoric; 14, strabismic. The ICC for the intraobserver repeatability for one observer was 0.979 (95% CI, 0.970-0.985; P < 0.0005) and for the other was 0.988 (95% CI, 0.983-0.991; P < 0.0005). The ICC for the interobserver agreement was 0.994 (95% CI, 0.992-0.996; P < 0.0005), indicating high reproducibility of the measurements.
Cyclocheck can assess ocular torsion quickly and easily. It provides reliable and reproducible measurements of the DFA and thus objective cyclodeviation in both orthophoric and strabismic subjects.
介绍一种新颖、免费的基于网络的软件工具（www.cyclocheck.com），用于通过测量盘-黄斑中心凹角（DFA）来评估客观旋转斜视，并评估结果的可重复性。
使用DRS CenterVue免散瞳眼底相机获取所有研究对象双眼的数字眼底照片。对每只眼睛进行四次独立测量，并由两名观察者分别使用Cyclocheck软件计算DFA，以确定该技术的可重复性和重复性。使用组内相关系数（ICC）和Bland-Altman方法对结果进行统计分析。
共纳入32名受试者（平均年龄34.4岁；范围12 - 83岁）：18名正视眼；14名斜视眼。一名观察者的观察者内重复性ICC为0.979（95%CI，0.970 - 0.985；P < 0.0005），另一名观察者为0.988（95%CI，0.983 - 0.991；P < 0.0005）。观察者间一致性的ICC为0.994（95%CI，0.992 - 0.996；P < 0.0005），表明测量具有高可重复性。
Cyclocheck可快速、轻松地评估眼球扭转。它能提供可靠且可重复的DFA测量结果，从而在正视眼和斜视眼受试者中评估客观旋转斜视。
