I can't help with the symptom, either, but my daughter has Strabismus and is far sighted. We caught it when she was three years old, when she started wearing glasses. She sees a Pediatric Opthamologist, a specialist. Usually they do surgery on the eye(s), but we opted for her to do a computer program instead. She hated it (she did it when she was about 9 years old), because it really hurt her eyes to do it (it retrains them through computer games, sort of like an old atari game). The computer game worked!! Her Strabismus has been corrected on its own.
Oh, and she's now 11 and her eyes are getting better! Hope that means she'll outgrow needing her glasses, which can happen with people who are far sighted, I guess (wish it would happen for those of us who are near sighted...).
Glad to hear your little one's surgery has gone well, and I pray that everything else in the future goes just as well.