The U.S. Navy's Doctrine of Laser Eye Surgery
The New York Times reports that laser eye surgery — now performed on nearly a third of every new class of midshipmen — is transforming Naval careers. Navy doctors are performing these operations with "assembly-line efficiency," allowing older pilots to continue flying, and those who might otherwise have been disqualified to pursue flight school. The number of procedures has reportedly climbed from 50 to 349 over the past five years. The Navy uses a different procedure than that used on civilians — grinding the cornea rather than cutting a flap — out of fears that the flap could come loose in supersonic combat.
I've had glasses since I was 11 months old, and as much as I'd like to get rid of them, getting flaps cut or 'ground down' just dont sound very appealing to me.
Your hair look like poop, Bob! - Wanker.
Maybe if I was in danger of losing it. Or maybe they've improved a lot since I was in many moons ago. The commonly held belief back then was these docs (and dentists... don't get me going on this one...) were only in the military because they couldn't hack private practice. No suing for malpractice if you're a GI and the doc screws up.
"I'd rather be a lightning rod than a seismometer." -Ken Kesey
Their explanation in both cases was the same: we really don't know the long-term effects of PRK/LASIK/LASEK. It could have side effects (triggering glaucoma, etc) that would render you near blind in 30 years. Is it really worth that risk?
So I'm sticking with glasses. For one thing, I'm over 40 and while I'm still nearsighted, normal age-related presbyopia is setting in. I can deal with it by simply removing my glasses to look at things that are up close. If I had LASIK, I'd need to carry reading glasses with me all the time, so there's not much of a win.
Next up was a device that measured my perscription. I had to stare at
a little picture while it zoomed in and out of focus. Apparently this
determines my exact perscription, none of that "Is this better, or that"
lens swapping. I wonder why eye doctors don't use this all the time.
Well, there's a number of reasons... the machines are expensive, and they're even more expensive for really accurate models. They aren't perfect, and sometimes get it wrong (but that's usually pretty obvious when the lenses you get just don't work for you, and a second check on a different machine should catch this).
But the #1 reason? If you check somebody's eyes in 30 seconds with a machine, instead of spending 10 minutes doing it by hand, many people don't think you're doing it properly, or don't think they're getting "their money's worth". It's utterly stupid, but so are the majority of the people who go to an optician - remember, it's the same people that TV is made for.
Due to thin cornea's, I opted to have PRK done on my earlier this year (rather than LASIK). I have no plans on doing supersonic flight thought, and am VERY VERY happy with the results.
The quick pro/con list of PRK vs. LASIK:
pro PRK:
no cutting of the cornea
con PRK:
can be more painful
longer healing time
The results of both procedures are exactly the same.