Murata Noriaki, Toda Haruo, Ubukata Hokuto, Takagi Mao, Tanaka Chie, Machinaga Ai, Miyajima Minami, Tatara Shunya
Department of Orthoptics and Visual Sciences, Niigata University of Health and Welfare, Niigata, JPN.
Cureus. 2024 Jul 12;16(7):e64401. doi: 10.7759/cureus.64401. eCollection 2024 Jul.
Purpose Infant vision assessment often relies on grating acuity; however, its objectivity and convenience must be improved. A calibration-free eye-tracking system, even in preverbal children, enables easy and precise gaze analysis. This pilot study aimed to develop a reliable automated monocular vision screening. Methods Participants (n=118) underwent a grating visual acuity test using the eye-tracking system. Correlations between the grating acuity, uncorrected visual acuity, and refractive error were analyzed across different cutoff values of fixation duration percentage. Results Strong correlations were found between the grating acuity and refractive error at 69% and 88% thresholds. Similar correlations with uncorrected visual acuity were noted at 70% and 89% thresholds. False-negatives around the 70% threshold were noted, indicating potential overestimation of acuity in cases of low visual acuity/high refractive error. Discussion The results highlight the feasibility of calibration-free eye-tracking system-based monocular vision screening with an optimal screening threshold of 90%.
目的 婴儿视力评估通常依赖于光栅视力；然而，其客观性和便利性有待提高。一种无需校准的眼动追踪系统，即使对于尚不能言语的儿童，也能实现轻松且精确的注视分析。这项初步研究旨在开发一种可靠的自动单眼视力筛查方法。方法 参与者（n = 118）使用眼动追踪系统进行了光栅视力测试。分析了不同注视持续时间百分比临界值下光栅视力、未矫正视力和屈光不正之间的相关性。结果 在69%和88%的阈值下，光栅视力与屈光不正之间存在强相关性。在70%和89%的阈值下，与未矫正视力也有类似的相关性。在70%阈值附近发现了假阴性结果，表明在低视力/高屈光不正情况下可能存在视力高估。讨论 结果突出了基于无需校准的眼动追踪系统进行单眼视力筛查的可行性，最佳筛查阈值为90%。
