Are Siamese cats cross-eyed?
Siamese cats have special shapes and are extremely sincere among the complicated cat breeds. They are known as dogs among cats, so they are loved by people. However, in some Siamese cats In the photos of Siamese cats, you will find that their eyes are somewhat cross-eyed, and many Siamese cat owners overseas became celebrity cats because of the cross-eyed look of their cats. It turns out that Siamese cats have fighting cocks. Eyes are formed from many factors.
Some Siamese cats appear cross-eyed because the nerves on the left side of the brain mostly control the right eye, and the right side of the brain The nerve mostly controls the left eye. This can lead to double vision, where the cat tries to change its vision by bringing its eyes closer together. Then there is strabismus, which is the cross-eyed Siamese cat.
Strabismus means that the two eyes cannot focus on the target at the same time, so as to achieve the three major functions of co-perception, communication and focus. , decompose and mix the visual impulses of the two eyes into a complete, simple object image with a sense of subjectivity, that is, the normal visual process of binocular vision. Foster, a doctor of animal medicine at Michigan State University in the United States (winner of the American Feline Medicine and Surgery Award) pointed out that strabismus is a term used to describe the very specific position or target of the eyeballs. The normal situation is that the cat's eyeball is fixed in a suitable position in the orbit, and the small muscles attached to it drive the eyeball stem to adjust or move left and right. Occasionally, the length of muscle stretch on both sides will be slightly different, causing the eyeballs to turn to a very specific target, effectively to the position of one eye or both eyes. It can be seen from the above that a cat’s strabismus is closely related to the cat’s daily communication, sensory cooperation, physical reactions, and even the relaxation of the eye skin and the toughness of the intraocular muscles.
It can be said that by observing the position of the black part of the cat's eye in the eye socket, that is, approaching the bridge of the nose, such a simple direct view, It is difficult to determine whether the cat's eyes are "squinted" or "cross-eyed." Discussions on this issue at home and abroad are still inconclusive. Even though the structure of cat eyes is different from that of human eyes, a large number of ophthalmic clinical studies use cats as experimental animals to study the visual performance of human eyes, so it is possible to observe cat eyes. More or lessThe way of detecting strabismus in some people is based on the observation method of strabismus in some people, which is a reference basis for judging cat strabismus as closely as possible.
In addition, the characteristic of Siamese cats is that they only have facial features on their faces, ears, hands and feet. The coat is black and the rest is light cream; this is due to their private Siamese genetics. The Siamese gene inhibits the production of melanin. However, the lower the temperature, the smaller the effect of the Siamese gene. Therefore, Siamese cats with lower body temperatures will have black faces, ears, hands and feet, which is commonly called light heart color. .
Animals lacking melanin occasionally have optic nerves in the optic interstices A meeting on the road that shouldn't have happened caused a very serious situation. Since the conduction path of the optic nerve is determined during the development of retinal cells, it is generally believed that abnormalities in the conduction path are related to melanin.
And it turns out that not only Siamese cats, cats with light color genes or cats with Siamese dark color genes are also better than Siamese cats. Cross-eyed cats are generally prone to cross-eyes. In addition to cross-eyes, they are also prone to eye tremors.
Cats with cross-eyed eyes will have narrower vision and less three-dimensional vision when looking at objects; however, if they are generally raised in Indoors, it is actually completely useless for daily living! Therefore, there is no need to exclude cross-eyed cats! It is worth noting that cross-eyes may also be caused by neurological lesions. If an adult cat suddenly develops symptoms of cross-eyes, please do not take it and see a doctor immediately.
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