Visual Assessment Observation

I observed my 10 year old son who does display what his teacher's describe as ADD type behavior; however, he doesn't display all of the typical symptoms and I have always doubted  the idea as well.  He has always passed vision tests at the pediatrician's office and school screenings.  After completing the checklist for possible referral to vision evaluation, I found he scored an 18.  I also recognized he has issues with math and a lot of those problems do seem to be related to the problem of the numbers being located too close together.  Typically, when we do math homework, I have him copy the problem onto a blank piece of paper first.  This seems to alleviate some of the tension and frustration he has with math problems.  I never thought of it as being related to vision though!