My son is 3 and a half and has a slight eye squint now and again if he is tired or thinking his eye can slightly wonder outwards for a few seconds. We are under the hospital and he's been diagnosed with an extropia strabismus. At the moment his vision is fine but they are checking him every four months. I just wanted to know if anyone else has experience this with their child and what the outcome was. And also if anyone has tried visual therapy with any success?