DD struggles with ADHD, which we found because of her eye troubles when she was 9 (struggles to focus, can't concentrate on work and myopia). Sometimes when she gets angry or upset she takes it out on things around her including her glasses, or even just when fidgeting she plays with her glasses, in the last 6 months we have got her 3 pairs, she has either snapped them or cracked her old pairs! I spoke to her about it and she told me when she struggles with her sight, it makes he more agitated and understandingly frustrated, resulting in her ADHD to become more prominent.and she says because she always wears her glasses they are something she can always fiddle with which ultimately makes them loose so DH or I take them to get tightened, but I am worried it is becoming too much of a habit and I am afraid her vision effects her ADHD a worrying amount- She is a teenager now and her ADHD had worsened over the last year or two- as has her vision, I wonder if anyone can give me tips or help on coping with her ADHD and vision problems, or if any of you have experienced something similar?