Re: pupil dilation & halos on bright lights
- From: "Mike Tyner" <mtyner@xxxxxxxxxxxxxx>
- Date: Fri, 28 Oct 2005 02:12:42 GMT
"Kyle" <kyletaylorny@xxxxxxxxx> wrote
> Know what is the aberrations called. I am a telescope hobbyists.
> I know about spherical abberations, coma, astigmatism, turned
> down edge, glass roughness. I wonder what could be the
> equivalent in the cornea. Any idea?
Yes. The first 3 problems you described are part of every optical system,
living or manufactured.
Wavefront / flying spot laser techniques allow surgeons to correct for the
principal aberrations (spherical and coma) as well as sphere power and
astigmatism.
Look up the term "Zernicke polynomial" for a description of the math used to
describe these aberrations.
-MT
.
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