The good: The EyeQue PVT seems good at tracking a general decreasing trend.
The bad: Why would you buy a device for that if you’re already here? Cm measurements are free, more convenient and more accurate.
The ugly: The PVT definitely overprescribes you, and is not consistent enough for a starting point.
Check out these results from the EyeQue PVT review I did a while ago:
Now check out two of the tests I just did:
(ignore test 3 and 2, they were done with a messed up screen protector attached to my phone)
Test 5 and 4, between two tests already my cylinder is fluctuating by a whole 0.50 diopters. My SPH is wobbling a little bit. And most importantly, the insane overprescription. Just reality checked myself by putting on my good old faithful OD/OS -4.75/-3.75 and it was beautiful, I could see forever. I could see an ant on the road a mile away with them. It’s kind of fun to wear overprescribed glasses.
If the EyeQue PVT was overprescribing me before, and is still doing it now, then at least it’s confirmed real genuine improvement (not that I needed any proof from it). But seriously, I’d stay away from buying this thing for any real reason.