Re: seeing beyond infinity...

[P3D Larry Berlin <lberlin@xxxxxxxxx>]

>Date: Wed, 13 Nov 1996 11:09:44 -0500 (EST)
>From: P3D Dr. George A. Themelis <fj834@xxxxxxxxxxxxxxxxxxxxx>
>
>>I think Bill Ewald emphasized that he was talking about an extremely slight
>>divergence...
>
>An extremely slight divergence is all a (healthy) pair of eyes can achieve.
>Those who fuse regular stereo cards which are spaced beyond the spacing of
>the eyes (I can do that) diverge their eyes a little bit.  Could one repeat
>Bill's experiment but while viewing a stereo card instead of the artificial
>star he talked about?  I remember Bill went into great lengths to describe
>how he achieved his seeing beyond infinity and how not everyone can do and
>that it takes a lot of practice.  Can it be so difficult?
>
>George Themelis

For some it can seem totally impossible. The control mechanism centers on
pattern recognition for each eye. One learns independent direction of this
mechanism when you learn to freeview in any method. Greater practice yields
stronger muscles and the ability to persuade the muscles to direct the eye
past patterns that don't match to points where they again match.

Divergence seems to require a stronger use of muscles which work in
opposition to each other to achieve a wall-eyed view. Until those muscles
are strengthened in the new patterns it will feel difficult and perhaps even
strange. It's best to develop anything like this slowly over time so the new
development doesn't interfere with normal vision. 

Larry Berlin

Email: lberlin@xxxxxxxxx
http://www.sonic.net/~lberlin/
http://3dzine.simplenet.com/


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