I have been shooting with tape over my left lens or closing my left eye the past few years. ( right hand shooter). I have had LASIK surgery 18 years ago. Both eyes are set for distance. I do need reading glasses now. Doing everyday normal things my vision is perfect. I could read the smallest line they gave me. However, when I tilt my head slightly right and look up( looking for a target) I get a ghost image that is high and slightly right. I tried a contact in my left that was set for reading and wont focus at a distance, the double image remained. My eye doctor had me get in my shooting position to create the double image and put a lens over my right eye . It worked. However, I would see a double image doing everything else. I was hoping to figure out a way to shoot both eyes open ( I did most of my life). I am out of ideas.