Twenty-four hours continuous intraocular pressure (IOP) monitoring is beneficial for glaucoma care. Contact lens sensors using LC technology can achieve non-invasive continuous IOP measuring around the clock and are relatively simple in principle and structure, thus dominating the mainstream. Among them, stretchable inductive LC contact lens sensors constructed with liquid metal have advantages in signal quality as well as wearing comfort, but currently its sensitivity is slightly insufficient. Here, we propose an LC sensor that constructed with liquid metal to form the stretchable inductance and capacitance further. The capacitive plate and inductive coil can response to IOP changes simultaneously, thus able to enhance the sensitivity in principle. We modeled the sensing mechanism and conducted design, fabrication, as well as various tests. The device exhibits good characteristics, including reliability, good signal quality, etc. Especially, it has a threefold increase in sensitivity, exceeding the current state-of-the-art contact lens sensors.

二十四小时连续眼压（IOP）监测有利于青光眼护理。采用LC技术的隐形眼镜传感器可以实现全天候无创连续眼压测量，且原理和结构相对简单，因而占据主流。其中，采用液态金属构建的可拉伸电感式LC隐形眼镜传感器在信号质量和佩戴舒适度方面具有优势，但目前其灵敏度略显不足。在这里，我们提出了一种用液态金属构建的 LC 传感器，以进一步形成可拉伸的电感和电容。电容板和电感线圈可以同时响应眼压变化，从而在原理上能够提高灵敏度。我们对传感机制进行了建模并进行了设计、制造以及各种测试。该器件表现出良好的特性，包括可靠性、良好的信号质量等。特别是，它的灵敏度提高了三倍，超过了当前最先进的隐形眼镜传感器。