What is the difference between LASIK, LASEK, and presbyopia correction?

First of all, presbyopia is when you can't see things up close even if your eyesight is good, but with corrective surgery, you can see well.

I've never been interested in LASIK or LASEK, so I don't know much about them, but I think they're something you do when your eyesight isn't good.

I wonder what the difference between these two is.

Eventually, your eyesight will improve.