Peculiarity of Cat Eyes

Another peculiarity of the cat's eye is the nictitating membrane or third eyelid that runs diagonally though the cornea. The movement of this eyelid is continuous while the eye is open, and only when the cat is very ill, stays unmoving over the cornea and cap, on occasions, a surface so big that the animal can barely see.

In normal health conditions, the nictitating membrane helps the real eyelids to lubricate the cornea.

The cats capacity to fix his stare to that of its owners is known by everybody.

It's not odd to see them staring absorbed during a long period in front of an object, like when they stay staring firmly at the birds on the garden through the window or to the leaves that are being taken by the wind.

This is part of his hunting instincts, and there is no doubt that, whatever the circumstances, there won't be any movement in his vision field that goes by without him seeing it. If he where out on the wild, surely he would already have been prepared to give a jump to attack.

Siamese cats are inclined to suffer from a determine genetic failure that provokes diplopia or double vision, that is responsible of that typical squint look that he has for trying to correct his vision.

To see in color
There opinion differences between experts about cats seeing in color or not. In what they do coincide is in that their perception of color is not the same as with humans and that they are capable of distinguishing certain colors, as some owners can confirm.

There is a current scientific thought that affirms that cats distinguish between red, blue and white, while they are not capable of perceiving green, white and yellow, which they see as different tones of gray.

From it we infer movement as fundamental to the use cats give their sight skills, and that color is not as much.

Cats eyes, or even better his iris, are of a long variety of colors, including red, blue, green and gold.

There are no proves that the color of the eyes affect their vision, but it is an important characteristic to determine breeds.