Centre for Eye Health, University of New South Wales, Kensington, New South Wales, Australia.
School of Optometry and Vision Science, University of New South Wales, Kensington, New South Wales, Australia.
Ophthalmic Physiol Opt. 2022 Sep;42(5):973-985. doi: 10.1111/opo.13006. Epub 2022 May 22.
To determine the usefulness of Humphrey Field Analyser (HFA) SITA-Faster 24-2 gaze tracker outputs on interpreting intra-visit visual field (VF) result pairs.
Analysis of 1380 right-left eye pairs and 1432 pairs of test 1-test 2 intrasession VF results of patients seen within a university-based glaucoma service was undertaken to understand gaze deviation distributions. Output gaze tracker results were aggregated into total ticks, sum of amplitudes and average amplitudes. Correlations between visual field indices (mean deviation [MD], "events" and overall hill of vision) and independent variables (age and test order) were performed using one eye from each subject.
There was no association of test order (right-left, test 1-test 2) with eye movements. There was a significant, but weak correlation between eye movements and age (r = 0.16). Correlations of eye movements with MD were driven by more severe MD values. There were no significant correlations between intrasession difference in eye movements and the change in MD, number of "events" and hill of vision, or in the root mean square of sensitivity and total deviation values. There was also no significant correlation between gaze tracker outputs and another commonly used "reliability" metric, false positive rate.
Eye movement parameters as currently reported by the HFA do not appear to be correlated with key sensitivity parameters when considering the repeatability of intrasession SITA-Faster 24-2 VF results. Thus, current gaze tracker outputs do not appear to provide clinically meaningful information for interpretation of intra-visit visual field results that cannot already be garnered using other strategies.
确定 Humphrey 视野分析仪（HFA）SITA-Faster 24-2 注视跟踪器输出在解释单次就诊视野（VF）结果对方面的有用性。
对在大学眼科服务中心就诊的患者的 1380 对右眼-左眼和 1432 对测试 1-测试 2 同次 VF 结果进行分析，以了解注视偏差分布。将输出的注视跟踪器结果汇总为总点数、振幅总和和平均振幅。使用每个受试者的一只眼睛，对视野指数（平均偏差 [MD]、“事件”和整体视野丘）和独立变量（年龄和测试顺序）之间的相关性进行分析。
测试顺序（右眼-左眼、测试 1-测试 2）与眼球运动之间没有关联。眼球运动与年龄之间存在显著但较弱的相关性（r=0.16）。眼球运动与 MD 的相关性是由更严重的 MD 值驱动的。眼球运动与 MD 变化、“事件”数量和视野丘之间，以及敏感性均方根和总偏差值之间，没有显著相关性。注视跟踪器输出与另一个常用的“可靠性”指标——假阳性率之间也没有显著相关性。
当考虑 SITA-Faster 24-2 同次 VF 结果的重复性时，目前由 HFA 报告的眼球运动参数似乎与关键敏感性参数没有相关性。因此，当前的注视跟踪器输出似乎不能为解释单次就诊视野结果提供有临床意义的信息，而这些信息已经可以通过其他策略获得。
