Do you mind me asking what problems your son has and if the lenses have helped? I have never heard of these. My son is dyslexic and has a visual processing disorder. I use to use colored overlays on the page when he read and it did help. As a teen, I'm sure he would be totally opposed to the look but maybe he could use them at home when doing homework.
My son has always struggled with reading in spite of being extremely bright and very quick to learn math concepts. Even with the struggle, he as always been able to just sneak by to be considered "on level" in reading so he didn't qualify for any special services. He would just get the tutoring for the lower reading level kids.
We had him tested privately by a psychologist and he was identified as ADHD and LD in reading. She recommended further language/reading testing that she was not qualified to do. I was looking into having him tested privately for dyslexia when a friend who was a spec Ed reading specialist suggested that I have him screened for Scotopic Sensitivity (Irlen syndrome).
I had heard a little bit about the colored overlay thing and was not really sure if I believed it was real or would help, but I found a screener nearby and took him. I think we paid around $50 just for the screening for overlays. At the beginning of the evaluation (I was present the entire time) I thought she was leading him a bit too much in giving him words to describe how the letters looked on the page, but later as I watched him trying to complete some of the tasks, I was made a believer.
My son had the problem letters and words moving around, problems with spacing, letter appearing to jump off the page. Some of this is what I used to think dyslexia was -seeing word backwords. Real dyslexia is a phonemic problem having to do with not being able to figure out how the letters and sounds go together.(simplified explanation)
he could read short passages at grade level, but the longer the passage the worse hi reading got.
There was a detailed process to determine which colors of overlays were best for him for maximum benefit. Infact he needs a combination of two different overlays at the same time.
He also has trouble with lighting in general-bad headaches. Before this we used to have fights because he would want to come home and do his homework with the lights off.
We went with the colored glasses over the overlays mostly for convience. Overlays are much cheaper, but get scratched up or lost, and overlays can't be used when writing.
We had to go to a different person for the evaluation for the colored lenses.
Depending where you live it can be difficult to find someone who can do the evaluations. There were a lot of providers in Texas, but now we have to go drive three hours for the nearest evaluator.
Yes, I do think the color has made a difference. I could tell right away during the initial evaluation when listening to him read. His fluency improved instantly. He still struggles to read at the level of his peers, but he has made vast improvements, and he is more willing to read and do his homework than he was without the lenses.
This was probably more information than you wanted, but I would be happy to answer anynothervquestion that you might have.