I only have normal subpar vision but I too have never been able to walk out of an optometry appointment with a pair of glasses. That's a thing? Optometrists keep prescription lens stock on hand?
There's a store chain called Lenscrafters that has a gimmick where, depending on your prescription, you can get glassess in one hour at some stores. So if you have an appointment for an eye exam at the store it can be done. I've never shopped there so can't say what it's like in practice.
