Larry Hudson <org### [at] yahoocom> wrote:
> PM 2Ring wrote:
> > Many people require a toric prescription to correct for astigmatism, but I
> > wouldn't say it was a majority. I take orders for contact lenses for one of
> > the world-leading manufacturers, and we sell a lot of toric lenses
> > (especially after recent improvements in the technology), but most of the
> > orders are spheric lenses to correct for short-sightedness. Of course, the
> > story for spectacles could be different, but severe astigmatism is pretty
> > rare.
>
> I don't know how rare it is, but I am one who needs astigmatism
> correction as well as for myopia (near-sightedness).

Same here. Astigmatism seems more common with those of us of European origin
than with Chinese people, who often have severe myopia.

> But a few years
> back, I dropped my glasses (standard glasses, not contacts) and one of
> the lenses cracked, so I went to my optomitrist for a replacement.  Took
> about a week to have it made.  In that time I was still using this
> cracked lens -- a minor annoyance but no big deal.  When I got the
> replacement lens, my first look through it seemed very odd.  The doctor
> re-checked the prescription and said the yes, it was the right
> prescription -- but rotated 90 degrees!

Yes, that can happen sometimes... usually mistakes like that are picked up
before the lens gets to the patient, but not always.

> I had to use that offset lens
> for the next week while a proper replacement could be made.  Boy! what a
> strange sensation -- when I walked it felt like I was leaning over at an
> angle.  :-)  All turned out okay eventually, of course, but it was sure
> a strange feeling during that time.

I bet! If that happened to me, I'd get motion sickness. :)

FWIW, I've taken quite a few toric lens orders today.

<Lame attempt to get back on topic>
I just had an idea: I could use POV to illustrate what the world looks like
through my eye, by fitting the POV camera with a lens which is the inverse
to my prescription.

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