A battery charged by tears may make smart contact lenses a reality | Digital Trends
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A battery charged by tears may make smart contact lenses a reality | Digital Trends
https://www.digitaltrends.com/mobile/a-battery-charged-by-tears-may-make-smart-contact-lenses-a-reality/
A wafer-thin battery is in development that may be ideal to power smart contact lenses in the future. And it has an unusual way of being recharged.