[seanmcdirmid]

> I don't get it. You need glasses anyway for everything else.

When you get older, you often start needing two pairs of glasses (or bifocals). One for things far away (the glasses you drive with) and one for things much closer (computer, phone, etc...).

[jsnell]

Right. And at least I find phone use to be markedly different from e.g. computer use in this respect. It happens on the go, unpredictably, and not for very long at a time. I'm totally fine swapping to a different set of glasses when sitting down to work on a computer for three hours, but it's a much bigger hassle to do for a lot of phone use cases.

(I don't like any kind of varifocals.)

[seanmcdirmid]

I use fancy bifocals for that (varifocals?). It becomes more needed as I get closer to 50. I guess that will be even more important at 60…sigh.

[Tagbert]

And that is why my glasses have a progressive prescription. Works pretty well. However there are other changes in eyes that make smaller text a little harder to read that glasses cannot address. Cataracts can start appearing and impact image quality. Eyes can become dryer and focusing on small text can be tiring.