- A cat's vision is superior at night in comparison to humans, and inferior in daylight.
- Cats have a third eyelid, the nictitating membrane, which is a thin cover that closes from the side and appears when the cat's eyelid opens.
- Unlike humans, cats do not need to blink their eyes on a regular basis to keep their eyes lubricated. Cats will, however, "squint" their eyes, usually as a form of communication.
- Cats have an elliptical pupil, which opens & closes much faster than round types as in humans.
- Cats can see in color, but are partially color blind. They have the equivalency of human red/green color blindness. (Reds appear green and greens appear red; or shades thereof.)
- Cats don't see "detail" very well. To them, their person may appear hazy when standing in front of them.
- Cats need 1/6th the amount of light that humans do to see. Their night vision is amazing!
- Cats can see up to 120 feet away. Their peripheral vision is about 285 degrees.
- Cats eyes come in three shapes: round, slanted and almond.
- The color of a kitten's eyes will change as it grows older.
- At birth, kittens can't see or hear. Cats open their eyes after five days and begin to develop their eyesight and hearing at approximately 2 weeks. They begin to walk at 20 days.
- Kittens begin dreaming at just over one week old.
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