Strabismus

Kayla
My daughter is 6 months old and starting to show signs of strabismus.her father has it and so does his sister.
Does anyone else's little one have strabismus, if so do you do visual therapy with them? How is it working out? 
Her right eye either faces too inwards or too outwards. It's not all the time though but I don't want it to get any worse if I leave it.