This invention describes an implantable lens for the eye that can change its focus. It is a special type of lens designed to hold its last focus setting even when it's not receiving electrical power. To adjust the lens's optical power, a person uses a separate wireless device with a button to send a signal to the implanted lens.
Why it matters: Advances in miniaturized energy harvesting from biological movements and more efficient wireless power transfer since 2019 could make powering such an implantable lens more practical and long-lasting.
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