I have 2020 vision, as long as it is more than six feet away.  Which turns into 2010 at four feet and I am blind closer than that.  I need 125 reading glasses to see my music stand and 175 to see the neck of my guitar.  Know anywhere that I can get seven foot long arrows so I can see where they are pointing?  If I needed bifocals plus glasses to focus clearly on the target I would be owning two pairs of glasses, and the ones for shooting would have the diopter off center so the glasses would not warp my vision and be bifocal free.

I'm right there with you. 41 and the eye doc told me yesterday I will need bi-focals next time.  I am going to save up and have lasik to fix my astigmatism and then I will only need to wear reading glasses and will be glasses/contacts free when hunting.  I've never liked either for hunting.  Glasses fog up and contacts dry out.

I am 60, and have been traveling down that road since about 49, I shoot pretty good without the glasses, at least that is what they tell me. I tried shooting with regular and bi's but couldn't do it. I'm lucky I guess, as I only need the very low corrective lenses for distance.

I do take an once of Gojiberry juice every morning. It definitely helps me with the reading distances.