The NHS

I just have to ask how is it that health tourists come to the UK jump the queue and then go home without payment to the NHS, what are the management doing about it seems nothing at all, the report I read was about cataract operations costing £2500 each eye, on arrival it seems that it is considered that these Tourists have cataracts that are need to have an operation, and then they jump the queue!!, leaving many British people having to wait months before they get theirs, I had my first eye done last September 2015, after 6 weeks  I had to go to Specsavers to see if I needed my other eye done, this is after I saw a consultant who during the appointment told me I needed to have my other eye done as well, so why did I have to go back to Specsavers??, they had to refer me back to the hospital for the eye to be done, as I had one eye done my glasses were no good, so the only option was that for 4 months I had a pair of glasses that had a lens in the eye needing doing and nothing in the eye that had been done, I can tell you that it is so very disorienting,  unable to drive and great difficulty getting about, I did understand that the second eye would be done inside 8 weeks but it took 20 weeks, could it be that the delay was because of health tourists??, I have no idea but it answers many questions!!!!.