Like mentioned above there are some fantastic archers out there who shoot right handed but are left eye dominent. So I think shoot what ever way is most comfortable. Some people can make the switch to left hand and get used to it, then there are some people who can't shoot left handed no matter what. But the fact is you have better depth perception and field of view with both eye's open plus it beleive it or not it takes concentration and fatigues the brain to keep one eye closed. Good luck.