that really saved my ass recently, when my glasses broke and I found my prescription was expired. Apparently, they let you use an expired prescription up to 18 months, and mine had expired like 20 months ago.
Their app worked, but was pretty painful. Required holding my phone 14 feet from my monitor- had to move my desktop to a different room to get the app to approve.
I think WP is a great company. I also agree that their vision check UX leaves a lot to be desired -- I ran through it myself a few times, and each time it caused intense frustration. There's something about needing to manipulate laptop and phone and having 14-20 ft of space that is just... impossible lol.
Anyway, our service is similar to WP's app in that we check vision for the purpose of determining if a prescription renewal is appropriate. But that's pretty much it. For us, this is only the tip of the iceberg. Fun times ahead!