Hi Everyone
New here today - I have an 11 yo son who has ADHD and ASD - he is also dyslexic.
Regarding the colour overlays etc - some opticians do "colorimetry" which is a special test for dyslexia and tests using all different colours and shades of colours - not NHS funded so you have to pay but I had my son tested and it worked really well - he now has a set of blue glasses which really help him with his writing.
Might be another option to consider.