One technique used today is to use different lenses in each eye. One may focus better at long distance while the other focuses better at short distances. The brain adapts and combines the two. I met someone last month who has 20/20 vision with this technique and doesn’t need reading glasses.
I think it’s called bi-optics? Doing this with contacts works great and eliminates the need for reading glasses.
“One technique used today is to use different lenses in each eye. One may focus better at long distance while the other focuses better at short distances. The brain adapts and combines the two. I met someone last month who has 20/20 vision with this technique and doesn’t need reading glasses.”
About one in two thousand people are short sighted in one eye and long sighted in the other. I found out I was that way in High School. I actually didn’t even realize I had this issue since my brain automatically switched between the eyes. Doctor said I was probably born that way. I found out I had this problem when I took a flight physical for the Navy. That was the end of my career as fighter pilot.