Well... I am a 'candidate' and they answered all my questions. They said they've never had a patient come out with vision worse than when they came. OTOH, it's expensive. And my prescription has changed A LOT more over just last year than it has previously - last year was the first year I started wearing contacts too. Though even with this change, I'm within their normal operating window. I asked how much they actually burn/shave (for lack of better terms) off the cornea. Apparently I have 531 'units'. 100 or so of that is the flap - so I'm down to about 431 of workable eye goo, then they take around 90-95 on top of that. So around 20% of your cornea. They say about 250 units is the limit on what you need on the cornea (no less than 250) - so I'll end up around the 340 unit range. Subsequent surgeries, if necessary, aren't as drastic and usually will be in the 15-30 unit range. So, take that FWIW. If I choose to get it done, it'll be late April. FYI, you have to get a $90 prescription (what the lady told me it would cost if you don't have a prescription plan -- I personally haven't costed it at a Pharmacy yet) filled prior to the surgery, so that's an additional hidden cost that most people aren't aware of going in.