Now here’s an idea whose time has come: a walk-up kiosk which administers eye exams. No more appointments and no optometrists with bad breath leaning in your face asking “this one or this one”.
Instead, you merely step up to digital signage which administers tests using various visual stimuli for both near- and far-sightedness, then the thing issues a printout with your eye health and prescription recommendation (along with advice to visit local eye professionals for a more thorough exam, of course).