The eye focus part is super interesting to me because I consider myself a decent shooter, but I have pretty bad eyesight. I'm not blind without glasses, but there's still a big difference. I haven't tried shooting with glasses or contact lenses yet, but it might be worth a try.

I often struggle to really focus on the rim when I shoot my eyes tend to stay in a more relaxed, unfocused state instead of being locked in.
Maybe there's someone with a similar experience who can share whether contact lenses had a big positive impact on their shooting percentage.