Dragaera

SKJB / Dream Cafe' swag ideas

Frank Mayhar frank at exit.com
Wed Dec 8 21:37:05 PST 2004

FRIEDA2133 at aol.com wrote:
> I am still worried about your eye infection.  I cannot even
> put contacts in my eyes.  Could you have lost sight in one
> eye or even both?  Also, it isn't very far from the eye to 
> the brain.  I think there is some sort of direct connection 
> or maybe it is an upside-down connection.

It is a direct connection.  In fact, the retina can be thought of in a
way as a tiny bit of the brain that's actually in the eye.  The interesting
thing is that there's actually processing going on _in the retina_, or
more precisely in the neurons behind the retina, before the signals are
passed to the brain itself.

(The upside-down part comes from the fact that the image projected on our
retinas is upside-down.  Our visual process compensates for this.  One
experiment in the 70's or early 80's involved someone wearing a getup
that inverted his visual field.  After a couple of weeks of stumbling
around running into things, it "flipped" and he was seeing things
right-side-up again.  After he took off the getup, he had another couple
of weeks of stumbling before his brain re-learned to compensate and "flipped"
it back.)
-- 
Frank Mayhar frank at exit.com	http://www.exit.com/
Exit Consulting                 http://www.gpsclock.com/
                                http://www.exit.com/blog/frank/