To fully understand how vision works from a holistic
perspective, let's compare it to the process of producing a
finished photograph. Even after you've focused the lens and
taken the picture, you still don't have a photograph until the
film gets developed. This is done in the darkroom. When it comes
to your eyesight, the darkroom is your brain - the visual
centers that process the visual information sent by the eyes.
After an image is registered on the retina (film) it then has to
be developed into a visual image (a photograph). This is done in
the occipital region of the brain (the photographer's darkroom).
Vision - the formation of images of the physical world - does
not occur until the brain receives impulses sent to it by the
eyes. The darkroom of your visual system is a portion of the
brain known as the visual cortex or the occipital lobe, which is
located in the back of the head. As everyone knows, the camera
could take a perfect picture, but as a result of some error in
processing the photograph could