Originally Posted by
cubewheels
If you're looking to having a prism like a mirror, it will flip forward view upside down and that is worse.
I never liked rolling my eyes up to look forward while I'm facing the ground. Makes me quite dizzy and that's probably more dangerous for me. I prefer straining my neck to look as forward as possible
Prisms lenses don't invert. They are used all the time in glasses for people with double vision from eye muscle weakness and I have uses prism goggles to study sensorimotor adaptation in the lab. People learn to function with them perfectly with seconds of practice. There is, however, an opposite aftereffect when you take them off.
Agree, eye strain is no solution.