Up next in "terrifying things I don't ever want to have done": Google has filed a patent for a vision-correcting electronic device that has to be injected directly into your eye.

The device, Forbes reports, is designed to help the focusing of light onto the retina, resulting in the correction of poor vision. It will contain its own storage, radio and lens and will apparently be powered wirelessly from an energy harvesting antenna. Presumably, you won't need aerials sticking out of your eyeballs.

Google did not immediately respond to a request for comment.

Although Google has filed the patent, that's no guarantee that we'll see the idea come to life anytime soon, or even at all. Many patents are filed by tech firms and never see the light of day.

This is one, though, that we'll keep our eye on.