Interesting! I was just thinking about starting a thread about this question and , POP, I find it already on top!
I am left eye dominant and RH shooter. Self taught for the most part and started as a split finger, instinctive shooter. Started to become a decent shot but groups fell apart at 18 or more yards. I know I was shooting instinctive because I paid no attention to the arrow tip and only burnt a whole in the target. If I had even 1% on concentration on the tip in my peripheral vision shots were even worse nice left eye dominance gave a "double vision" type effect and I saw 2 tips.
Now I have changed bows, shoot 3 under, have much better form and have even gotten stronger. I am trying to learn gap shooting and the "double vision" was really messing with me. Lowered shot confidence and it took to long to line the shot up.
Closed my right eye and everything was more clear and easier to line up the shot. Cut my group size way down and started putting them in kill zone at 20 yds on a deer target.
Conflicted, I fell like I am cheating but for gap shooting it really seemed to help. I closed one eye only because of the RH shooting, Left eye dominant issue.
Any other tips, suggestions or advise is greatly appreciated! I will be watching this thread. Thanks.