In theory, the device converts electronic signals into ever-changing displays projected onto the contact lens and visible to the wearer, perhaps like a movie subtitle.

理论上，这种装置将电子信号转换成隐形眼镜上瞬息万变的信息展示给使用者，这有点像电影里的字幕。

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While many people who wear contacts never experience any difficulty with their use, as an occasional contact-lens wearer myself, I've had the same problem nearly every time I've switched brands.

CNN: How can I safely remove a stuck contact lens?