I have just had safety glasses from specsavers. Usual miserable experience. Had the eyetest glasses made up to PD from previous records. I knew straight away they were not right. Took ages to get an appointment to see clinician who did the usual bend them and even tried to tell me they rotated one lens that was not right (square ish lens so how that's possible... Follow up appointment with retest and as suspected they has under prescribed the right eye by .25 of a dioptre. Saw another dispenser and he reckoned my PD wasn't correct as well (why the previous one didn't spot it I don't know). Glasses remade and are now OK and I paid for highest quality lens (still not Essilor quality). I have had poor experience before from Specsavers and have had a refund from them in the past.
But to add balance I have had the same from Boots. wrong prescription and PD wrong. Make a fuss get a retest with the top bloke and best dispenser and Essilor lens different precription and PD and all sorted out and perfect. Been through that twice with Boots over the years. I think there is a serious shortfall in skill/experience and a big dose of complacency/treadmill in all these outlets. I wonder how many people could have better vision. I was told at specsavers that my dominant eye could switch
. Well guess what if the dominant eye is under prescibed the other will do it's best. They are full of excuses you just have to be firm with them.
The only reason I used Specsavers is my company has a contract for safety glasses otherwise I wouldn't touch them with a bargepole.
My mother has used an independant and also had issues, so I am not targeting stores just my journey so far.
There is a lot to take into account for example, whether you want short or long corridor (regardless of lens depth), different make of lens. making sure the lens is deep enough for good range, whether close up is more important. I always make sure the reading element is as strong as possible for me so I can see fairly close when using the very bottom of the lens. This is where short corridor helps. etc etc Bit of a minefield really and these "experts" don't think we are capable of making a choice based on information if given freely. Mybe a good independant will take the time to discuss, I have yet to try one.