Thanks for the input. I'm trying to overcome the issue and an astigmatism in the same eye. I'll check out what i can find on Jeff Cooper and try the tape over the eye to retrain. It would be nice to get to where i can shoot with both eyes open for defensive training. TT...I was checking out YouTube and saw a couple of Hickok45's videos explaining that he uses the chin tuck and his left eye while pistol shooting due to an astigmatism. I'll give it a try and update with a range report. Thank you for the info on the matter!
"I'm all in favor of keeping dangerous weapons out of the hands of fools. Let's start with typewriters." - Frank Lloyd Wright
Glock 23 Gen 3