I know someone who had surgery recently who's still having to wear shades weeks after the event, with some discomfort and impaired vision. Of course it could still work out fine for him (right now, he wishes he hadn't bothered), and it seems most operations are successful.
FWIW, my optician (albeit some years ago) said he didn't know of any ophthamologists who would opt for corrective surgery themselves, partly because of the statistical risk of making things worse in the short term, but also because the long term outcomes were unknown.
To summarise, I don't know, but at least I can spell ophthamologist correctly.