I have essentially lost the vision in my right eye and I'm in the process of making my first rifle purchase since that happened. Being right-handed this presents a problem. Obviously I'm now left eye dominant in the extreme. (On the bright side, I can now pistol shoot with both eyes open no problem). I'm researching optic options for a AR carbine and I think it's obvious that I'm going to have to find something that will allow me to get my head over the rifle to get my left eye in front of the optics. Don't know how common this is but I'm thinking that someone must have run into this situation before and might have some advice (other that start shooting left-handed which I am considering). I'm thinking a red-dot sight mounted high on top of the carry-handle or on a flat-top receiver with some type of high-profile sight mount. The other idea I had was something that mounts off to the side of the rifle somewhat. I also have a question relative to red dot type optics. How important is it to get one's eye directly aligned with them? Will they still work if my eye isn't directly behind it? Any and all suggestions would be appreciated.