P3D Re: blind in one eye

[Jim Crowell <crowell@xxxxxxxxxxxxxxx>]

> Also consider this: If you go blind in one eye, you will have very little
> problem getting around and negotiating 3D space. Memory has a lot to do
> with it. Eventually, however, you will loose the sense of stereo depth and
> it becomes more difficult.
>
> RM

I'd have to disagree with you there;  you lose "the sense of stereo depth"
as soon as one eye goes, & no amount of memory is going to help you with
that.  However, the other depth cues are quite adequate for most tasks;
I've known people with no stereo vision whatsoever who were accomplished
tennis players...Motion parallax is probably the most important of these,
and under certain conditions (for example, when a computer display is yoked
to your head so that when you move from side to side it changes
appropriately--as the real world does) it can yield a sensation of space
that's comparable in strength to what you get from a stereo pair...

-Jim C.


-Jim C.
----------------------
Jim Crowell
Caltech Division of Biology
Mail Code 216-76
1200 E. California Blvd.
Pasadena, CA 91125
Tel: (626) 395-8337
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mailto:jim@xxxxxxxxxxxxxxx
http://vis.caltech.edu/~jim/Home.html


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