A contact lens sensor system with a micro-capacitor for wireless intraocular pressure monitoring

Yu Chieh Huang, Guan Ting Yeh, Tzu Sen Yang, Jin-Chern Chiou

研究成果: Conference contribution同行評審

12 引文 斯高帕斯(Scopus)

摘要

This paper proposes a novel micro-capacitor sensor for intraocular pressure (IOP) measurement on soft contact lens. The sensor was designed and fabricated by using MEMS fabrication technologies. The contact lens is for wearing on a cornea such that a curvature of the contact lens corresponds substantially to that of the cornea, and is preferably made of Hydroxyethylmethacrylate (HEMA) by cast-molding method of soft contact lens for high oxygen permeability and comfortable long-duration wearing. The prototype without wireless antenna has been implemented with a sensitivity of 0.43 pF/mmHg in measurement of human eye like balloon pressure test between 100 mmHg and 180 mmHg. The results show its high stability and reproducibility in a series of repeatable pressure variation. In future work the micro-capacitor will be tested on enucleated porcine eyes with better and integrated with a radio frequency integrated circuit and antenna on soft contact lens so that IOP value could be transferred to voltage value via capacitor to voltage converter and transmits IOP sensing signal by wireless telemetry system.

原文English
主出版物標題IEEE SENSORS 2013 - Proceedings
發行者IEEE Computer Society
ISBN(列印)9781467346405
DOIs
出版狀態Published - 1 1月 2013
事件12th IEEE SENSORS 2013 Conference - Baltimore, MD, United States
持續時間: 4 11月 20136 11月 2013

出版系列

名字Proceedings of IEEE Sensors

Conference

Conference12th IEEE SENSORS 2013 Conference
國家/地區United States
城市Baltimore, MD
期間4/11/136/11/13

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