My latest check up a year or so on from surgery shows that my vision is better than 6/6 in my left eye and 6/6 in my right eye, which is amazing quite frankly. To save you trawling back through my posts, my eyes were around -7 dioptres before surgery. Mr. O'Brart will call me back in a couple of years for a free check up on my eyes and because he wants to add to his 13 years of patient data. I can see him for free at any time in between. I doubt you'd get this sort of service from a clinic.