I'm a right handed left eye dominant shooter and it's been interesting. After trying lots of different things like the dot on the glasses and a little device on the end of the barrel to block my left eye from seeing the bead, I've just stuck with closing my left eye just as I pull the trigger.
I even tried shooting left handed and it felt so wrong I gave up on the first try.
I'm a competitive sporting clays shooter and most of my buddies can't believe I can shoot while closing an eye.
It takes practice but for me it works.
The dot on the glasses is a pretty easy thing to try but may bother you for hunting.
I don't think the fiber optic sight will help with dominance. I think you'll just see the sight better with your dominant eye.
Good luck,
Bob