Thanks for detailed reply, it really helps.
But there is an issue with optometrisrt, I talked to one, and she said, no, I cannot adjust my prescription. I believe this is a liability issue, and she did not want me to have glasses less than prescribed. In case something happen, she thinks she is liable for giving me wrong advise.


But from my experience, I know, I CAN wear less powerful lenses. Because I still have my old-old glasses, and they are fine. Not perfect like my current prescription, but good enough to ride.

So, I have to find a place where they can adjust my prescription. Or adjust the lens bevel with Dremel to fit. I could not find such place where they can work with me. If someone knows it, please, let me know.