Re: Digest 2102, Weird Eyes

[P3D Koppel,Dennis <Koppel@xxxxxxxxxxxxx>]

I am another one of those people with "weird eyes".  I first became aware of 

the problem when I took an eye test before I got an automobile learner's
permit.  Fortunately, I could very well get a permit if I had one working 
eye.
All through childhood I tested fine, so there never was a problem with my
accommodation of both eyes from birth.  I took up seriously looking at
stereoviews about 5 years ago.  I recently got a pair of prescriptive 
glasses for
the first time and found that I could see better fine detail in both 
stereoviews at
the same time, when it was there.  For instance,  I could now see a tree 
with
individual leaves as a rounded 3-D object.  Before, I could not distinguish 
this
kind of detail with both eyes.  Now I have glasses only when I look at 3-D!

Dennis Koppel
koppel@xxxxxxxxxxxxx
 ----------

Sandman reports:

> I have one friend who has weird eyes.  One
> is good only for far away one is good only
> close up.  As a result he sees the word as a
> flat 2d image.  The only time he has ever seen
> anything in 3D (he claims) is when he uses my
> red-button viewer and is looking at slides.

Gregg reports:

>Concerning stereopsis with one near-focus eye, and one far-focus eye.
>The Cleveland Clinic Foundation ophthalmology department has recently
>been testing distance stereopsis of patients who have this situation
>(typically due to a recent procedure).  Early evidence indicates that
>there is stereopsis at far as well as near.  This says nothing about
>individuals who have been unable to accommodate both eyes from birth.

>My experience with stereoscopic video viewing systems shows that depth
>can be perceived even when one camera is out of focus.  Also that the
>sharpest image tends to dominate the experience, and that many viewers
>do not notice that one eye is out of focus.


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