I also have two pairs of perscription glasses . One is a set of frames that are over fifteen years old with large lenses, , ,nearly round. The other is a lot smaller , rectangle shape. Neither give me any trouble .
But , like Fallguy , I like brimmed hats . If the string touches anything during my draw the whole thing falls apart . So to keep the hat and eliminate the distraction I made a deer antler button and sewed the button to the crown and curled the brim up to the button . Like July Johnson said after he got his face burned ‘it’s easier to where it than look at it ‘.
I also shoot split finger and anchor middle finger in corner of mouth.