This is an important article that highlights concerns that parents of children with autism have brought up frequently. I wonder if the children who look at things sideways have the unequal acuity between eyes that they mention? I know that I have uneven acuity (astigmatism in one eye and near sighted in the other to a different degree) and I find myself closing one eye depending on what I am focusing on.
I think it is important for children with autism to have an eye exam from a pediatric phthamologist who has experience working with children with special needs in order to get this looked at.
See on sfari.org