Interesting. I had 20/15 vision for years; my far vision is still plano but now with a mild astigmatism correction, but I need reading support so I wear bifocals when I’m not at home. At the house I just wear cheaters since I don’t need assistance for TV viewing and the like.
One side effect of my vision change is that I can’t focus on the front sight like I used to. I’ve gotten around this by going to a bold orange front and a plain serrated rear (Ameriglo Hacks.) I’m not going to be shooting Bullseye any time like this, but I am MoPP effective.
Maybe it’s worth $10 to try it for a month.