leahchris my DD also has vision issues, but maybe not that switching focus thing, just plain old "convergence insufficiency". When she was little there would be the comment here and there about autism because if people came within a certain range she'd turn her head away rather than look straight at them. When she was a little older, she'd start saying things like people have four eyes. It wasn't until last year when this all made sense, because from about 6-8 inches in she sees double. The two "experts" she's been too disagree on things so we've not done therapy yet until we get more info. she recently got glasses for distance though and that helps.
It's hard to have a smart kiddo or g-kiddo with the dips. I have been looking at DD's old tests to revisit them and try and make sense of them, since we were rather ignorant back then and didn't have very good interpretations. Some of her WJII subtests have differences of up to 67 points from each other! It can be quite the journey as you're finding out.
