Many children with learning disabilities have problems with visual integration. Some experts believe that problems with visual stimuli may exacerbate ADHD symptoms like inattention and distraction.
Although visual integration, like auditory integration, is not considered standard therapy for ADHD, because anything that stimulates vision is also going to stimulate the brain some experts think it may help alleviate specific symptoms.
Recent studies showed that children with ADHD are three times more likely to suffer from convergence insufficiency, a condition in which both eyes can't focus on the same things, as people who don't have ADHD. Convergence insufficiency is one of several problems with visual stimuli that are addressed by vision integration therapies.
Like auditory therapy, visual therapy uses stimulation techniques, computer games, vision exercises, and specially colored lenses that reduce eye strain or correct vision imbalances, to “retrain” your child's brain to process visual stimuli in a normal way.
Symptoms of visual integration dysfunction include being unable to follow words along on a page as your child reads, stay focused on something he's looking at in the foreground, and focus both eyes on the same thing at once. Children with this disorder also suffer from a condition called scotopic sensitivity syndrome, in which words or objects seem to jump around on the page, and their eyes tire more easily than normal.