Varifocal glasses.

[slappy]

I tried them a few years for work, top half was for distance, bottom half was basically just clear glass so I could read drawings. Could not get on with them at all, I was told to not move my head when looking down at drawings but just to move my eyes. Did my head in trying to do it, eventually binned them. I figured at work if something is that far away that I need glasses to see it then I could just ignore it.
Never tried them on the bike or driving car, just wear my normal glasses that are for distance.