I am trying out some monovison contacts. I am left handed and my left eye (dominant) has a lens for up close and the right eye for distance. I am tired of tilting my head way back to see the sights with my glasses. I don't know if this is going to work or not. I am trying to shoot with both eyes open since with my left eye I can see the sights great but the target at 20 ft. is real blurry. I hope I can get used to this. I am practicing with a BB gun in the garage. Not very good yet.