I asked the optometrist. He was a little offended that I wasn't going to use the new measurements but I pleaded with him enough that he relented.
One very interesting thing that convinced me to start doing this: if you get measurements taken at night (vs early in the day), your prescriptions will be stronger as your eyes are already tired. So your new glasses may be too strong for you but your eyes will adapt to it and become worse.
An optometrist in Germany told me the same regarding measuring eyes in the morning, for what it's worth. I came in after work and they basically turned me away because they didn't think I'd get a good measurement at that time.
Was this in the US? I’ve tried and everyone told me filling an expired prescription is illegal. Even places that don’t do exams. I have an old prescription and don’t want to get an exam because of the pandemic.
I'd recommend getting glasses online from Zenni [0]. They just ask for the measurements of the prescription. There's nothing about expiration dates. And they're super inexpensive! Glasses are a racket.
I can't speak for the quality/durability of their frames, as I only used them to get some prescription lenses for my Valve Index so I can play in VR without wearing my glasses.
For a while I could order from the UK, but I think (at least for the shop I used) they changed this to be more restrictive like the US.
It really is annoying due to the difficulty finding a good optometrist who does more than the basics. The entire process is still a matter of closest estimate when you consider that our eyes don't work in exact "steps" along a range. On top of that, the center point of the lens varies a lot based on exactly how a set of frames sits on your particular face. I've had plenty of glasses that were headache city because the IPD was right, but the lens center didn't line up properly with my pupil (vertically, when worn).
Then don't even get me started on the whole Luxottica thing where it can be another pain in the ass to find nice looking frames at many optometrist-attached stores. There are a few others with both optometrists and glasses sales (Warby Parker, if you have one of the brick and mortars nearby, for example).
For someone like me, even the "cheap" stores usually involve an extra $150-200 per set of glasses due to my cruddy eyesight and the need for the highest index lens material. I usually end up bouncing back and forth between somewhere like Warby when I really am due for another exam and will stomach the $200 cost for $20 worth of plastic. If I break or lose my specs too soon after, I tend to just suck it up and roll the dice with one of the cheapie online vendors.
>The study analyzed 200 pairs of glasses that had been ordered from 10 different websites. The lenses were analyzed based on a number of criteria, including measurement of sphere power, cylinder power and axis, add power (if specified), separation of distance of optical centers and center thickness. The AOA reports that in some cases, single vision lenses were delivered instead of the bifocals that had been ordered. In other cases, specific lens treatments were either added to an or were left off.
>>almost half of the eyeglasses tested in the study (the AOA reports the number at 44.8 percent) didn't have the correct prescription strength or presented problems with safety.
I use firmoo, and I haven't had any issues with the lenses. The only tricky thing is that you need to basically estimate the fit based on the dimensions of glasses frames that you already own.
get the best eye test you can, with a prescription.
buy cheapo online chinese.
zenni optical works fine for me, but with prices from 10 bucks, try several vendors and see which one you personally like.
