Is pupil one big one small OK?

summary

Under normal circumstances, the cat's eye pupil should be of the same size or state. For example, when the light is strong in the daytime, the two pupils will each narrow into a line of the same length; At night, when the light is very weak, the pupil can enlarge, absorb more light, in order to see the object more clearly.

Is pupil one big one small OK?

If the size of the two sides of the pupil of your cat is occasionally a little different, but there is nothing strange about it, then the cat may have Horner's syndrome. Horner's syndrome itself is not a disease, but a medical term generally referring to neurological symptoms. Such symptoms not only exist in cats, but also in humans! This is mainly due to sympathetic nerve abnormalities or damage, resulting in the cat pupil contraction is inconsistent, third eyelid exposure and other symptoms.

If the cat eyeball appears like trauma, tumor, ulcer and other lesions, the cat will also have Horner's syndrome! If the cat brain stem by trauma, long tumor, inflammation and so on, can cause Horner's syndrome! In the vicinity of the cat's neck is a very dense part of the sympathetic nerve, if the neck injury or lesions, there may be Horner's syndrome!

This is related to the structure of the cat's eyeball. When the human eye looks at the sun, the pupil will shrink, but when it shrinks to a certain extent, there is no way to shrink. Therefore, after a long time, the eye will feel uncomfortable; In the dark, the human eye will feel uncomfortable. Compared with the human eye, the cat's eye pupil is very large, and the contraction ability of the pupil sphincter is particularly strong, so the cat can adapt well under different light irradiation: under the strong sunlight in the daytime, its pupil can shrink very small, like a thread; Under the light of medium intensity in the morning and evening, the pupil contracted slightly, such as jujube shaped; In the dim environment at night, under the very weak light, the pupil can enlarge and expand as round as the full moon

matters needing attention

If the cat's middle ear has trauma, tumor, otitis media, otitis media and other diseases, it will also cause Horner's syndrome! If the cat eyeball appears like trauma, tumor, ulcer and other lesions, the cat will also have Horner's syndrome! Therefore, the excrement shoveling officer should carefully identify and judge the possible causes of the cat, and if the situation is serious, seek medical advice in time!