My wife is an optometrist so I can ask her but I think one of the doctors that she works with in the hospital had surgery for one of the muscles on his eyes so that his would see straight. She also worked before going to school as a tech for a practice that specialized in vision therapy.
Here is some info:
Just talked to her. It's VERY hard to fix and there are some cases that adults have had improvement. It depends on the cause. Go to doctor to check it out. It would probably be a optometrist who does vision therapy (or at least mention it). She said most ophthalmologist would say no fix because they really don't believe in it (therapy that is). She also it's not a guarantee and it takes a lot of time (and thus money) to try it. Again, just go to your eye doc and discuss it (probably not a lens crafter type location).