eyesight has developed to assist in the hunting process. As with the human
eyes, cat's eyes are on the front of the head and are binocular so they
can see in 3D. A cat's vision is much less acute than human and colors
are less vivid for a cat. Cats are nearsighted. Their eyes are excellent
at detecting movement, but not detail. One of the more remarkable characteristics
of cat vision is their ability to see at night. While cats can't see in
total darkness, they need only one sixth the amount of light than a human
to see. This is one of the reasons for the dramatic difference in eye shape.
A cat's pupil can dilate three times larger than the human eye allowing
in more light. Also cats have reflective cells behind the retina that amplify
the light that comes the eye. This is why when a flash picture is taken
of a cat; the eyes often appear to be glowing. All these features help
cats hunt at night. While a cat's vision isn't the strongest, it is developed
(in a way that along with its whiskers and strong sense of smell) to provide
a key element for survival.
Cat Eye and Ear Products