I suspect that you are correct about reimbursement.
However, when a person visits an optician or an optometrist, at the end of the visit they receive a set of specifications for correcting their eyesight back to as close to “normal” vision as possible. The catch for those specs being called a prescription is that a person cannot walk in and purchase any corrective lenses that they choose. Instead, they are limited to options that fit their specific corrections only.
Pieisawesome@lemmy.dbzer0.com 7 months ago
That’s what people in the US mostly do.
You are still getting a glasses prescription, but since you are purchasing from the eye doctor who examined you, the “need” for a prescription is abstracted away.
If you called and asked for a written prescription, they would give it to you