There is an argument that laser eye surgery increases depth of field in some way. The idea is that you can have one eye adjusted to be slightly shortsighted so you can read without glasses but also have useful distance vision of 20/40 or so, then have the other eye corrected (or left alone) so that it has good distance vision.
I was speaking to a BA pilot in her late 50s who has had this done and has a class one medical with no need for eye correction. Expensive though, about £6k altogether.