Silicon.com: Passports replaced by iris scanning in Amsterdam

[Ken Brown]

Very, very, definitely the iris :-)

Ken Brown

Adrian Midgley wrote:
> 
> A puzzled doctor asks
> 
> are we dealing with scans of the retina (the black bit lining the
> inside of the globe of the eye and extending forward as far as the
> (back) edge of the iris, which medical students do take a little while
> to learn to see any detail on, which needs dilatation of the pupil
> with eye drops (or I suppose darkness and a very quick exposure) to
> allow a good view of but which has a very persistent pattern of the
> fractal division of the main blood vessels on it...
> 
> or of the iris, the coloured circle around the pupil which is made up
> of a complex, and very possibly also fractal, tracery of fibres easily
> seen from several feet away by anyone and into whose complexity and
> depths lovers easily lose each other, and irdiologists their critical
> faculties?
> 
> Retina
> http://archopht.ama-assn.org/issues/v119n10/images/cover.jpg
> http://archopht.ama-assn.org/issues/v119n10/images/ecs10161f1.jpg
> 
> Eyes
> http://www.eyecasualty.co.uk/maincontent/introductiona.html
> 
> -----Original Message-----
> From: Dave Bird <dave@xemu.demon.co.uk>
> To: ukcrypto@chiark.greenend.org.uk <ukcrypto@chiark.greenend.org.uk>
> Date: 31 October 2001 08:00
> Subject: Re: Silicon.com: Passports replaced by iris scanning in
> Amsterdam
> 
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> >
> >In article <020101c16135$edeeb690$1e01320a@drizzt>, Nexus
> ><nexus@patrol.i-way.co.uk> writes
> >>Personally, I'm wondering how much a persons' retina pattern will
> change due
> >>to say, fatigue, alchohol, medication (atropine ;-) or even half a
> ton of
> >>skunk ;-)
> >
> > How about people with diabetic eyes problems, which may range from
> > small dots of exudate to severe bleeding creating dead spots?
> >
> >- --
> >   ^-^-^-@@-^-;-^   http://www.xemu.demon.co.uk/
> >        (..)__u     news:alt.smoking.mooses
> >
> >
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