Instrumented Contact Lens to Detect Gaze Movements Independently of Eye Blinks.

IF 2.6 3区医学 Q2 OPHTHALMOLOGY Translational Vision Science & Technology Pub Date : 2024-11-04 DOI:10.1167/tvst.13.11.12

Marion Othéguy, Vincent Nourrit, Jean-Louis de Bougrenet de la Tocnaye

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Abstract

Purpose: To test on humans an eye tracker based on the use of a contact lens with active infrared sources and to evaluate whether this system can track the eye behind the eyelid.

Methods: The system is made up of a scleral contact lens embedding two vertical cavity self-emitting lasers (VCSELs) remotely driven by eyewear comprised of electronics and cameras. Tests on humans were carried out on five subjects to assess performance and to determine whether the VCSEL spot could be detected behind the eyelid.

Results: The lens was worn and used without difficulty. The device allowed accurate tracking of the eye (0.83° ± 0.59°), and the VCSELs can be detected behind closed eyelids.

Conclusions: These results confirm those previously obtained in terms of tracking and demonstrate that the device can be used safely to monitor eye movements even when the eyelids are closed.

Translational relevance: The VCSELs could be useful for a variety of applications to reduce data missed due to blinks, particularly with regard to interactive systems, fundamental studies on closed eye movements, or finding ways to improve clinical diagnostic precision for disorders of consciousness.

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独立于眨眼检测目光移动的仪器式隐形眼镜

目的：在人体上测试一种基于使用带主动红外源的隐形眼镜的眼球跟踪器，并评估该系统能否跟踪眼睑后的眼球：该系统由一个巩膜隐形眼镜组成，内嵌两个垂直腔体自发射激光器（VCSEL），由电子设备和摄像头组成的眼镜远程驱动。对五名受试者进行了人体试验，以评估其性能，并确定能否在眼睑后检测到 VCSEL 光点：结果：镜片的佩戴和使用都没有问题。该设备可对眼睛进行精确跟踪（0.83° ± 0.59°），并可在闭合的眼睑后检测到 VCSEL：结论：这些结果证实了之前获得的跟踪结果，并证明即使眼睑闭合，也可以安全地使用该装置监测眼球运动：VCSEL 可用于多种应用，以减少因眨眼而错过的数据，特别是在互动系统、闭眼运动基础研究或寻找提高意识障碍临床诊断精确度的方法方面。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Translational Vision Science & Technology Engineering-Biomedical Engineering

CiteScore

5.70

自引率

3.30%

发文量

346

审稿时长

25 weeks

期刊介绍： Translational Vision Science & Technology (TVST), an official journal of the Association for Research in Vision and Ophthalmology (ARVO), an international organization whose purpose is to advance research worldwide into understanding the visual system and preventing, treating and curing its disorders, is an online, open access, peer-reviewed journal emphasizing multidisciplinary research that bridges the gap between basic research and clinical care. A highly qualified and diverse group of Associate Editors and Editorial Board Members is led by Editor-in-Chief Marco Zarbin, MD, PhD, FARVO. The journal covers a broad spectrum of work, including but not limited to: Applications of stem cell technology for regenerative medicine, Development of new animal models of human diseases, Tissue bioengineering, Chemical engineering to improve virus-based gene delivery, Nanotechnology for drug delivery, Design and synthesis of artificial extracellular matrices, Development of a true microsurgical operating environment, Refining data analysis algorithms to improve in vivo imaging technology, Results of Phase 1 clinical trials, Reverse translational ("bedside to bench") research. TVST seeks manuscripts from scientists and clinicians with diverse backgrounds ranging from basic chemistry to ophthalmic surgery that will advance or change the way we understand and/or treat vision-threatening diseases. TVST encourages the use of color, multimedia, hyperlinks, program code and other digital enhancements.