look into the extreme outdoors rear sight. It has enough adjustment so that you can shoot right handed and left eye. It eliminates the peep sight. It isnt cheap but it works pretty well. I have one, i dont have eye issues, just like the sight. I would suggest getting their setup with attached front sight though. I did just the rear sight and i'm almost out of left hand adjustment. The full one piece design takes care of that.
"If Darwin saw the same sunrise and sunset, that I see from a duck marsh, or my tree stand; then he would know there is a God, and that He created all of it." -Ford-