I never had it done for two main reasons:

1. Actual cutting of the cornea.
2. A cripplingly negative response to anything that surgically impacts my body. Even giving blood triggers an overwhelming need to inject it right back into me.

Knowing what I do about CC and the astronomically high likelihood of global civilizational collapse before mid-century, I should really have something like that done so I can do without glasses if absolutely necessary. Assuming I live that long, that is. Which, judging from the current advanced age of my own parents, is a decent “likely”.