Jake S.
Keymaster
Post count: 8739

Use the eye chart as a convenient translator of blur horizon distance that works for you.

What the chart says doesn’t really matter, what matters is you being able to recognize people and have a good experience with distance vision while still having a little bit of blur challenge. When you have that, you can look at an eye chart and see what line that experience translates to. All subsequent reductions, the eye chart is just a handy shortcut for that. 😉

20/30 or so is good for a lot of people in natural daylight.