My left eye has been exotropic, since my teens. It was never corrected fully. I am also quite shortsighted with astigmatism. With my full prescription, my eye normally focuses fine, but still wanders off when tired. I'd like to know if wearing prism glasses would help the weak eye to focus. If there is someone or something in my side vision, I find my eye veers off, without my turning my head, in their direction instead of looking straight ahead. This is so frustrating. Has anyone else had the same problem as me? My optometrist never prescribed these glasses in the past, but then again my last optometrist said I didn't even have a lazy eye so... Any advice is welcomed.