What's more, in foreign countries eye exams are frequently done by technicians who are not doctors. It's not that complicated to press the "start" button on an autorefractor. So even if eye exams are required, they can be done far more quickly and easily than at present.
In many countries in Asia and Europe, prescriptions aren't _required_ for hardly anything. You can buy drugs and glasses at will, including antibiotics. (Typical exceptions only for most stimulants and some -- but not all -- opioids.) In the US, where you can't get anything without seeing a doctor, including a box of contact lenses, one feels infantilized.