Kim Dong Hyun, Yang Hee Kyung, Han Sang Beom, Hwang Jeong Min
Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam 13620, Republic of Korea.
Saevit Eye Hospital, Goyang 10447, Republic of Korea.
Diagnostics (Basel). 2025 Feb 4;15(3):361. doi: 10.3390/diagnostics15030361.
: We wished to develop an automated method for quantifying fusion control in patients with intermittent exotropia (IXT) using an eye tracking device. : Fifty subjects fixated on visual targets on an LCD monitor at a distance of 45 cm, consisting of dots moving horizontally and vertically and randomly appearing dots at fixed positions. The control group consisted of participants with less than 5 prism diopters (PD), and the IXT group consisted of IXT patients with 10 PD or more, excluding divergence excess types. Fixation disparity (FD) was measured using an eye tracking device, and the FD score was compared with the Newcastle Control Score (NCS) and the Mayo Clinic office-based scale (OCS) score. The subjects repeated the test twice, and the test-retest reliability was determined. : The fixation disparity scores of the IXT group during horizontal pursuit, vertical pursuit, and random dot fixation showed positive correlations with the NCS (r = 0.549, 0.583, and 0.481, respectively) and OCS score (r = 0.551, 0.570, and 0.505, respectively). The test-retest reliability of the FD scores of the IXT group using an eye tracking device was fair to good for each task (ICC = 0.633, 0.656, and 0.697, respectively). : The eye tracking device developed for automated measurement of fusion control has the potential to assist in functional assessments of IXT.
我们希望开发一种使用眼动追踪设备对间歇性外斜视（IXT）患者的融合控制进行量化的自动化方法。50名受试者在距离45厘米的液晶显示器上注视视觉目标，该目标由水平和垂直移动的点以及固定位置随机出现的点组成。对照组由棱镜度小于5棱镜度（PD）的参与者组成，IXT组由棱镜度为10 PD或更高的IXT患者组成，不包括散开过强型。使用眼动追踪设备测量注视差异（FD），并将FD评分与纽卡斯尔控制评分（NCS）和梅奥诊所门诊量表（OCS）评分进行比较。受试者重复测试两次，并确定重测信度。IXT组在水平追踪、垂直追踪和随机点注视期间的注视差异评分与NCS（分别为r = 0.549、0.583和0.481）和OCS评分（分别为r = 0.551、0.570和0.505）呈正相关。使用眼动追踪设备对IXT组FD评分的重测信度在每项任务中均为中等至良好（ICC分别为0.633、0.656和0.697）。为融合控制的自动测量而开发的眼动追踪设备有可能辅助IXT的功能评估。
