It works, but it’s short lived.
Nope.
The eyeball is like the gut it keeps on growing, unfortunately like the gut it doesn't grow like we would want it too. I got mind done about 6 years ago, don't regret it, I was pretty blind figuratively speaking, still have to wear the cheaters for reading, that is something they don't tell you, but it is better then all the time.
I don’t know anybody who has had the experience of “short live” improvements.