>
Reminder, if you're in the US, the FTC says your eye doctor must give you your prescription after your exam. If a doctor refuses to do so, they can face legal action and penalties.
https://www.consumer.ftc.gov/blog/2016/05/buying-prescriptio....That said, I don't think the FTC stipulates what information must appear on the prescription. Many docs leave off your PD (pupillary distance), which is a necessary measurement if you're buying online. Fortunately, there are a variety of easy ways to take this measurement yourself after the exam, although if you're really concerned about precision, you'll want the doctor's measurement.
The doctor will leave off prescription information on-purpose? WTF?
I'm not sure what bizarro system the US has with opticians and buying glasses...
On a trip in the US I broke my glasses. I had to get a replacement, but I was in rural country, and it was a weekend. Now, even though there were shops selling eyewear open, I couldn't just get a pair, because they wanted a prescription from a doctor (I think I went to a Walmart, whose doctor that takes prescriptions was off for the weekend among other places).
In my country you can get a prescription on the spot at any shop selling eyewear (perhaps our law dictates that any eyewear shop has an optician in employment -- but any assistant can also take a lens of your old glasses and get the measurements). In any case, a prescription test costs nothing, and you can buy single use contact lenses with that immediately, or get the glasses in a couple of days.