I remember hearing from someone who was on a long cruise trip, and on their first day, lost their glasses without hope for replacement. So they just had to cope

I remember hearing from someone who was on a long cruise trip, and on their first day, lost their glasses without hope for replacement. So they just had to cope with the rest of the trip without. They said that it took a while to learn to cope, but once they did their short-sightedness didn't affect everyday life at all, apart from not being able to read. This included things like playing tennis. I'm -4.5 in both eyes, and, interestingly, if I take my glasses off I can just about make out the words I'm typing here without adjusting the zoom level; mostly from shape. Zooming in a couple of notches makes the letters appear. Blurry and distorted, but legible (just). I can totally believe that practice would make me reasonably functional.