I have double vision due to an astigmatism that caused amblyopia. My optometrist said that the astigmatism is correctable with surgery or glasses, but I would need to train the eye with physical therapy to deal with the amblyopia which wasn't guaranteed to work since it wasn't detected early on in my childhood. I've never bothered since I'm so used to double vision it never bothers me. Have you had luck improving the double vision?