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Re: Parallax differences...


  • From: P3D Jim Crowell <crowell@xxxxxxxxxxxxxxxxx>
  • Subject: Re: Parallax differences...
  • Date: Mon, 10 Jun 1996 10:32:26 -0800

At 9:16 PM 6/9/96, P3D Eric Goldstein wrote:
>>
>> Fix your gaze on an object... do not move your head!... do not shift your
>> gaze from the object!
>
>
>I believe that this is virtually impossible to achieve for a
>number of reasons,
>including our biological tendency to exhibit small unconsious "scanning" eye
>movements no matter how hard we try to "fix" our gaze.
>

Actually, it's possible to maintain fixation to within a (rather
small, I think) fraction of a degree....


-Jim C.


------------------------------------------------
Jim Crowell
School of Optometry
360 Minor Hall
University of California
Berkeley, CA 94720-2020
(510) 642-7679
jim@xxxxxxxxxxxxxxxxx
http://john.berkeley.edu/IndividualPages/jim.html



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