World’s smallest LEDs from a new semiconductor Micro- and nano-perovskite LEDs promise a new generation of display technology 19 March 2025, Zhejiang University ‘Downscaling’, the process of making elementary devices smaller in size, is at the heart of many technological breakthroughs in computing, information display, and human-machine interactions. For example, the downscaling of transistors has accelerated the speed of computers
Wirelessly. Like an NFC tag.
Not saying it would be super practical but if you custom shaped them you could put a wire coil around all of the non seeing parts of the eye.
Just make it sodium based, and a good crying jag will replenish the battery.