Re: Dangers of freeviewing (repost)

[P3D Jim Crowell <crowell@xxxxxxxxxxxxxxx>]

At 9:04 PM 9/26/96, "P3D  Dr. George A. Themelis"
<DrT-3d@xxxxxxxxxxxxxxxxxxxxxxxx wrote:
[deleted]
>
>In chapter 3, "Fundamentals of Photo Inerpretation", the author
>Ellis L. Rabben writes the following about freeviewing:
>
>   "Naked-eye stereoscopic vision is an interesting and
>   often convenient stunt.  If adopted as a habitual
>   practice, however, it can cause accommodation and
>   convergence to assume a new and anomalous
>   relationship.  The interpreter may then see double,
>   or his vision may blur, at odd times, because the
>   stabilizing relationship between accommodation and
>   convergence has been disrupted."
>
>I wonder if there is any scientific truth to this statement.  If
>not, as I suspect, then how come it found its way in what appears
>a reliable & scientific reference?
>-----

No references were given?

-Jim C.

----------------------
Jim Crowell
Division of Biology
216-76
Caltech
Pasadena, CA
(818) 395-8337
jim@xxxxxxxxxxxxxxx



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