If the verbal area is his strength, I doubt that you'd wind up with higher scores on the Stanford Binet. Is there a reason you need more testing to get at his abilities? Are you trying to get him accommodations at school, get him into a specific program, or figure out how best to teach him?
As far as vision therapy, I too have heard mixed messages. We had that suggested for one of our daughters as well, but I was never able to get anyone to tell me that there was a truly objective way to say, "yes, this is the issue" and to fix it. I am rather scientific minded and don't like significant subjectivity to my medical diagnoses.
Is he having serious frustration issues regarding reading or other things that leads you to want to pursue treatment? Also, do you have a family history of either learning disabilities or giftedness?
