Dyslexia is complex and individualistic. The low scores in rapid naming and delayed word recall are indicative of the language processing problems of dyslexia and at his age it can be difficult to determine whether visual problems are memory/ processing problems or seeing problems. It is fairly common to have both to different degrees.
The low score of foreground / background maybe an indication of visual dyslexia. Not all visual dyslexics have poor depth perception but the rate is higher than the general population.
You may want to visit
http://dyslexiaglasses.com for information about visual dyslexia.
