Though ejections might be a problem?
That's just one of many features the makers of smart contact lenses promise will be available in the future.
"Imagine... you're a musician with your lyrics, or your chords, in front of your eyes. Or you're an athlete and you have your biometrics and your distance and other information that you need," says Steve Sinclair, from Mojo, which is developing smart contact lenses.
His company is about to embark on comprehensive testing of smart contact lens on humans, that will give the wearer a heads-up display that appears to float in front of their eyes.
The product's scleral lens (a larger lens that extends to the whites of the eye) corrects the user's vision, but also incorporates a tiny microLED display, smart sensors and solid-state batteries.
"We've built what we call a feature-complete prototype that actually works and can be worn - we're soon going to be testing that [out] internally," says Mr Sinclair.
"Now comes the interesting part, where we start to make optimisations for performance and power, and wear it for longer periods of time to prove that we can wear it all day."
https://www.bbc.co.uk/news/business-61318460