Tear charging contact lensScientists develop ultra-thin battery for smart contact lenses that could be charged by tearsScientists have developed a 0.2 mm battery that can be charged by tears, bringing smart contact lenses closer to reality.https://www.cnbc.com/2024/06/06/scientists-develop-ultra-thin-battery-that-could-be-charged-by-tears.htmlBlink to Generate Power for Smart Contact LensesA dual-mode power pack harvests energy from light and from tearshttps://spectrum.ieee.org/power-smart-contact-lenses