With all the talk regarding Lasik, I haven't seen discussion of what would
seem to be an obvious shortcoming. How does this procedure address the problem
of a gradually changing eye prescription. Lasik is far too expensive to have
one's eyes tuned up every couple of years, or is the idea to simply to get
people close to normal and then if future deterioration occurred glasses
could be used again?

Nearsightedness tends to appear in young people,
increasing gradually for a while, then levelling off.
Not always, but usually.

Most refractive surgeons won't operate until you've
demonstrated a "stable" refraction for a couple of
years.

-MT

Good point about changing eyes. As I understand it - and I'm considering
lasik - the surgery should only be performed on people whose myopia has
pretty much stopped changing. With most people, that happens in our 20s,
and our prescriptions don't change dramatically until we start needing
reading glasses in middle age. My own eyes, I think, have varied only a
diopter over a decade. But now that I'm 48, I'm developing ever-changing
presbyopia- and Lasik won't help that, may only make it worse.  
Nancy

I haven't seen a post lately referring to the EyeKnowWhy web page (and please
excuse the post if it's been done elsewhere or recently...)  Before you undergo
refractive surgery please read http://members.aol.com/eyeknowwhy/index.htmfor
somewhat negative, but (no pun intended) open-eyed look at the caveats of this
type of procedure.

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Jeff B.

you are correct concerning ongoing changes....close is good enough for some
folks. I hope those contemplating the procedure have a good disclosure of
complications and what to expect. If you realize that you will need glasses to
tune up your vision, then lasik and all other refractive proceedures seem less
attractive. If your goal is to lessen your dependence on glasses and contacts,
then you may achieve it and be happy. If your goal is to lose glasses and see
20/15 with no loss of contast sensitivity and a permanent result YOU WILL BE
DISAPPOINTED.