We ALWAYS wear shooting glasses while hunting, and deliberately shoot clays low gun. (I'd much rather give up a couple of targets -- if in fact I do -- to maintain a consistent style. But trap never has been my thing.) The permanent magic tape dot makes a lot of sense, we'll try it.
Incidentally, here's something I learned years ago that surprised me and might help someone else: I'm blessed with super eyesight, but in my 40s my right (dominant) eye developed mild astigmatism before / greater than my left eye. I only discovered this because I started missing easy targets when I was tired at the end of the day (and light was poorer). I figured out I was cross-firing and got to an eye doc who fixed me right up. I've learned since that "acquired" cross dominance, due to unequal eye "aging," exascerbated by fatigue is NOT uncommon.
