Dynamic eyeglasses

Through the day, one's eyes probably change prescription, as their shape changes due to movement, humidity, etc.

Nobody really manages this - eye docs barely claim to get within even pretty wide tolerances for how accurately they'll prescribe glasses for the same thing. How much daily variation is there in how one sees? it seems like a lot.

There should be a variant of Home-made 3d printed eyeglasses should exist which also live-monitors the eyeball and adjusts the prescription, physically. That is, a physical way to modify the actual physical lenses of the eyeglasses which the person is using, to improve their vision.

I think the default view is that people will just be looking at video screens which can do anything with cameras & offer zooming, on-screen HUD etc. That's true, but if the person's eyes aren't very good, or are variable, then they might still not be very comfortable.

Another further level, of patching into nerves, is another way to solve this.