My DD (9) had first pair of glasses about 18mths ago and had one lens change in the frames last year. I was asked to pay £30, but assumed NHS covered them? The arms never tightened properly kept being loose we went back several times to have them tightened. The arm screw finally fell out this wk after visiting opticians again on Monday to be tightened. Can she get another set of frames under the NHS or do I pay for them? The opticians is never very clear on it! I've looked on NHS website and it just says entitled to a voucher but not how often.