yes thats what struck me Jan - that the specialists don't have it themselves!
Also I have quite a bit of laser eye surgery for an eye condition I have - so I wouldn't have it done to correct my shortsightedness - it just doesn't seem that important when my specs do a decent job - can't even be bothered with contact lenses now either.
Can't remember exactly how long I've had them - a couple of months, I suppose. I wear them for about 7 hours each night, they're dead comfy, just slightly bigger than gas permeables (they're rigid gas permeable lenses). You put them in before you go to bed (can read in them for a bit first if you like), then wake up with 20/20 vision.
Because I wore rigid gas permeables to correct my sight anyway, I had to leave my lenses out for a month so that my eyes went back to normal - any contact lens changes the shape of your cornea to a certain extent. My eyesight actually got worse - my eyes had been slightly corrected by my ordinary lenses anyway.
My eyes were about -5 and -4.5 and the -5 had 1.73 astigmatism too. But they're 20/20 now My eyes went to something like -2.5 and -1.25 after the first day (am sure the exact figures are on MN somewhere - I've talked about it before!), so I wore soft lenses that day, but the next day, I had good enough for driving eyesight, the day after it was 20/20.
For some people, it doesn't work. I have particularly malleable corneas - mine is the worst prescription my optician's worked on and he was surprised to get such a good result.
It flattens the cornea enough that you can see perfectly. You do need to keep wearing the lenses - it doesn't change the shape of your eye permanently. But I figured that I would either need spectacles or contact lenses during my waking hours every day anyway, the only "permanent" method of sight correction was laser surgery, but I wasn't prepared to take the risk as I know how unlucky I usually am!
Apparently some people only need to use them once every two nights to maintain results - it would seem that as my corneas are malleable, they spring back to short-sightedness pretty quickly - I tried leaving them out one night and woke up blurred again - though not nearly as bad as before!