Blink-sensing glasses: A flexible iontronic sensing wearable for continuous blink monitoring

Rui Chen, Zhichao Zhang, Ka Deng, Dahu Wang, Hongmin Ke, Li Cai, Chi wei Chang, Tingrui Pan

Research output: Contribution to journalArticlepeer-review


Blink reflex has long been considered closely related to physiological states, from which abundant information on ocular health and activities can be revealed. In this study, a smart glasses wearable has been developed, incorporating a flexible and sensitive pressure sensor, to monitor blink patterns by continuously detecting ocular muscular movements, referred to as blink-sensing glasses. By applying the emerging flexible iontronic sensing (FITS) sensor with the sensitivity of 340 pF/mmHg, the skin pressure variations induced by movements of the orbicularis oculi muscles can be monitored in real time. The blink-sensing glasses can successfully capture blink patterns with a high accuracy of 96.3% and have been used to differentiate the blink features from both dry-eye subjects and healthy controls. This device can be potentially used as a new clinical and research monitoring tool for continuous eye blink analysis, while providing patients with high comfortableness in long-term ambulatory and home settings.

Original languageEnglish (US)
Article number102399
Issue number5
StatePublished - May 21 2021


  • Biodevices
  • Bioelectronics
  • Sensor

ASJC Scopus subject areas

  • General


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