Unfortunately contrary to popular "societal" pressures of aging, it is an irreversible process.
We do not age per se as we gain maturity, wisdom, and grace.
Too bad the eyesight starts to fail but there is no magic herb in the world that will reverse maturing.
Reading glasses. Eye exams. That is all that can be done. It was weird, I wore glasses many many years, and when I hit a certain age I wasn't seeing quite right so I went in thinking my eyes were getting worse because I was maturing. I had my glasses taken away and told actually your vision is very good and sometimes this happens also. Then suddenly you'll see a difference and your eyes will begin to give way.
wanderingherb