I can say that I have negative 4 dioptri for sure (confirmed multiple times, contacts prescription is for this). Yet I can see street signs better than my friends with negative 2. I often asked eye doctors how this is possible and they don't seem to have a good answer. But that's what it is.

I also have trouble with low constrast settigs and nighttime, vs daytime. I think it may have something to do with the brain recognizing small things even if the image coming in is blurry, and it uses high contrast to do it. That's my guess.

But does Bates method really work, or is it all just placebo effect?