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From: mig@cunixb.cc.columbia.edu (Meir)
Subject: Re: Eye Movement Tracker
Message-ID: <1991Jun18.235628.6737@cunixf.cc.columbia.edu>
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Organization: Columbia University
References: <164661@felix.UUCP> <1991Jun14.172700.4446@cbnewsl.att.com>
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Date: Tue, 18 Jun 1991 23:56:28 GMT

In article <1991Jun14.172700.4446@cbnewsl.att.com> spf@cbnewsl.att.com (Steve Frysinger of Blue Feather Farm) writes:
>From article <164661@felix.UUCP>, by asylvain@felix.UUCP (Alvin "the Chipmunk" Sylvain):
>> How about tossing that old mouse into the trash can, and construct a
>> device which looks into your eyes while you're reading the screen, and
>> can actually track the precise location of what you're looking at?
>> 
>> Such devices already exist, but they require physical contact with the
>> eyeball.  This is undesireable (at least to me!)
>
>They exist in non-contact form.  One design, for example, uses reflectance
>of the eye surface to measure eye movements.  
Quite true.  They are used in psychological experiments to monitor eye fixation
patterns.

This could be quite useful for virtual reality.  Imagine teaming it up with a
stereo cold cathode display :-)

* * * * * *  ====================== Meir Green
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