There have been many studies that apparently show pupil size and night vision issues etc are not related, if you look closely at the studies you will see most are done within the industry and they certainly are not going bite the hand that feeds so will say there is no correlation, take a well publicised Schallhorn study, of the 100 people who took the study less than 10 completed it, how can that possibly speak for the thousands of people having corrective eye surgery? The fact is that pupil size is the single largest problem with this kind of surgery and its after effects, mine were almost the same size as yours, yet the lasers OE use only could do a zone of 6mm, doesn't take a genius to work out when its darker and the pupils open up they go over this treated zone by a pretty big amount, yes you blend zones etc but its very risky having optical zones smaller than the pupils, it can be done with very high end equipment and by a competent surgeon who knows what they are doing, the high st chains like OE etc are the KFC, MCD's etc of the industry, knowing what I know now if I had to get it done I would have chosen somewhere like the Centre For Sight. Just for your info, the expert on my litigation case was Professor Harminder Dua, if you take a look at his credentials you will see he is the very best in the world in his field, there is nobody out there who knows more than he does, he is the reason I won my case as the other side could not bring anyone to the fight who could discredit him, and the good Prof told me straight its all down to pupil size and the smaller zone, it really is as simple as that, that is the cause of my awful vision problems. Just forget the studies you may come across which are paid for by the industry, get some proper unbiased information from people who act with integrity and have morals.
Was it as simple as your treatment zone was smaller than your pupil size? I have large pupils and am considering laser surgery, knowing that the treatment zone would be smaller than my pupils (8.6mm) given the limitations of the lasers they use. However I have read more recent studies that indicate it isn't necessarily a simple case that there is a relationship between smaller than pupil size treatment zone causing low light vision issues, despite this being a commonly held belief.
Strongly agree with the zaheer2003's comment (the one above). The result is based on subjective testing so of course there's likely to be some element of variation. Also if you have a sight test the prescription is legally yours...if you ever get into a situation where you're having to fight to get it just mention that you'll go to the General Optical Council to report them and they'll soon change their tune.
there can be a small variation depending on the tester and your responses during the test. I went to optical express and specsavers and got 3-4 different prescription within a 3 month period and they were all different.
Well that is plain ridiculous! Nowhere in the T&Cs does it say that we are obligated to purchase a pair of glasses as a part of the offer. I go to Specsavers (other opticians available too) when they run a free eye test promotion and I get my prescription no questions asked. From the comments, I'm just glad I never set foot in an Optical Express!