We have known for years that there is a link between how the eyes work and attention. This is why there are so many children who have both Attention Deficit Hyperactivity Disorder (ADHD) and visual coordination problems. Pediatric optometrists see this in the exam room every day and it is our job to help sort out how much of a child’s difficulty is due to ADHD and how much is due to not being able to visual focus and move their eyes efficiently.
There is some new research about ADHD and eye movements that is very compelling. Researchers in Tel Aviv, Israel, led by Moshe Fried, MD, have found that by simply monitoring involuntary eye movements, ADHD can be diagnosed.
“This test is affordable and accessible, rendering it a practical and foolproof tool for medical professionals,” said Dr. Fried. “With other tests, you can slip up, make ‘mistakes’ — intentionally or not. But our test cannot be fooled. Eye movements tracked in this test are involuntary, so they constitute a sound physiological marker of ADHD.
The study also showed that Ritalin (methylphenidate) does work in improving ADHD as measured by eye movement control. What was not researched in this study is how much other treatments that also improve eye movement control influence ADHD. Optometric vision therapy is commonly used to help patients improve their voluntary and involuntary eye movements.
Clearly more research is needed to better understand the relationship between ADHD and eye control, but this new study is a step in the right direction.
There is a lot of discussion lately about amblyopia (AKA lazy eye), largely due to the recent news reports of adaptations of Tetris and other video games as treatments for amblyopia. As I described in my previous post, these new binocular techniques are definitely better than old-school patching. However, in there essence, these techniques are not new. In fact, optometrists have known for a long time that treating two eyes is better than one. That is the basis of what we do in the vision therapy room to help patients with amblyopia – play games with both eyes at the same time.
I’m very happy to share with you an infographic on amblyopia treatment from the VisionHelp blog.
You can read the full story behind the origin of this excellent infographic here. I think it is fantastic!
If you and your child are struggling with patching – you don’t have to be! Not only is binocular therapy more effective than patching – it is way more fun! If you have questions about amblyopia, vision’s therapy, or children’s vision in general, do not hesitate to give us at call at 813-792-0637 or email me at Doc@BrightEyesTampa.com.
And please – share, pin, tweet or photocopy this infographic!
A new study, about amblyopia, has been published and it is really getting attention. From CBS news to Huffington Post to CNET, everyone is covering it, probably because they get to use the word “Tetris” in the title. Tetris, of course, is the hugely addictive block-stack game that, at least in my memory, was the first hand-held videogame blockbuster.
Amblyopia, known to many people as “lazy eye” is a visual adaptation to conditions that interfere with visual development. On a simple level, it means that even with the best glasses or contact lenses, the eye does not see and function as well as expected. It is not due to disease or injury, but rather a situation where the brain doesn’t communicate well with one eye and can’t use the eyes as a team.
Think of the brain being someone on the internet, and one eye is a friend with 14.4K dial up and the other has a 4G smart phone. Yes, you can communicate with both eyes, but you are going to prefer the 4G because it is faster and can do more things. Trying to use both eyes simultaneously as a team is hard because one is lagging behind and missing information.
I am extremely glad to see this study and I do have some thoughts on it: First, do not get too excited about the Tetris part. While I really have no doubt that Tetris and similar games stimulate visual planning and cognitive development, I suspect that the main benefit of using Tetris in this study is that it is very engaging, requires attention to visual detail, and requires the player to make decisions based on visual information. Basically this is true for most video games (and real world games, for that matter). So Tetris is not the magic here.
What IS a big deal about this study is the goggles – they required the eyes to work together to play the game. If you play, you can’t just shut off the amblyopic eye, or you’ll lose because you won’t see the falling blocks. And that isn’t motivating or good therapy. It isn’t patching or covering the good eye because you won’t see the blocks on the bottom. You still won’t win. This is like conventional patching. You can stimulate the amblyopic eye (upgrading the modem), but that alone only helps somewhat.
What this study shows is that only when both eyes can see and are given the opportunity to work together to achieve a common visual goal is there significant improvement in the amblyopic eye. In my internet analogy, this is not only giving the amblyopic eye a 4G smartphone but making sure it is net savvy. Both eyes are now friends on Facebook and Twitter so they can work together in real time to solve visual-spatial problems efficiently. (Just to be clear: the eyes do not use Facebook, and they do not communicate directly – all that happens in the brain).
So why is this so exciting? Because this is exactly what we do in vision therapy every day. We “upgrade” the eyes to work well individually (4G) but also “network” them to work together (Facebook, Twitter). We don’t use Tetris, but we do use paper & pens, balls, special glasses, computer programs, 3D art, optical illusions and lots of other fun tools to make it fun and productive.
It is great to see more research on this on adults with amblyopia. For too many years, patients have been told that after early childhood there is no hope of improving the vision in the amblyopic eye. It simply is not true. I did a blog post awhile back on the science behind amblyopia. You can see that here. For a great look at binocular treatment of amblyopia, see this recent post on the VisionHelp blog.