Re: how to shift your eyeballs outwards.

[P3D Jim Crowell <crowell@xxxxxxxxxxxxxxxxx>]

At 10:39 PM 5/10/96, P3D Wolfie! wrote:

>This is simple, most people don't realise that they do it everyday of their
>lives... for instance, if you're reading something and then someone who's
>a few meters away asks you something, then you would normally look up at
>them. for your eyes to focus on the person they have to diverge... or go
>outwards, just a little, it's very subtle and you wouldn't realise you're
>doing it.
>
[deleted]
>then once you realise what you are doing try to hold the card at the same
>distance while focusing on the poster and notice how the holes seem to merge
>together, this is divergence... moving your eyes outwards and is very easy.
>

A lot easier for some people than others, unfortunately.  The
linkage between accomodation (the distance the eye is focused
at) and convergence is calibrated differently in different
people.  I'm an exophore, as you probably are also; my eyes have
a natural tendency to converge at a greater distance than where
they're focused, so wall-eyed viewing is easier for me, too.
For many people the opposite is true, however, & at least among
vision researchers folklore says that most people find it easier
to view cross-eyed.

-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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End of PHOTO-3D Digest 1325
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