Hunting and precision shooting is different. Not to mention air powered guns are very different from gunpowder based firearms.

Look, I’m not the right person you should be arguing this with - there isn’t anything else I can say to convince you, except to say that the international world of shooting has accepted that corrective glasses don’t confer an unfair advantage in competition. If you’re really interested, find your local gun club, see if they have any air pistol events, try it out, ask the club director about the rules.