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Have you ever wondered whyCat eyeCan it light up in the dark? When entering nighttime or at that timecatbeing in the placedark, they often emit light from their eyes. Why does this happen? Can humans actually have eyes that glow like those of a cat?
Why Do Cat Eyes Glow in the Dark?
Braidee Foote, a clinical assistant professor of veterinary ophthalmology at the University of Tennessee, United States, explains why cats’ eyes glow in the dark.
The pupil of a cat’s eye, located in the center of the eye, can adjust its shape, dilating or constricting, depending on the light conditions at that time. When the pupil dilates, more light enters the eye.
On the other hand, the number of cells in a cat’s eye at the back is greater than in humans. These cells are called rods. The function of the rods is to capture low levels of light.
Other reasons because cats haveTapetum lucidumorEyeshine.Tapetum lucidumlocated behind the eye, specifically at the back of the retina.Tapetum lucidumIt is a thin network layer that functions to capture light.
Tapetum lucidumwill convert that light into an electrical signal sent to the brain to interpret the image.
Tapetum Lucidum in Cats Is Actually Special
Besides cats, there are several animals that havetapetum lucidum,among them owls, fish, dogs, horses and deer.
Difference,tapetumA cat shaped like the compound riboflavin, which is reflective. Its unique structure amplifies light of certain wavelengths to be clearly visible to the cat.
Therefore, the sensitivity of vision, especially the retina, in cats is higher when the surrounding light is low.
The Meaning of Different Colored Cat Eye Lights
Not only is it glowing, but there is also color in the eyes of the glowing cat. The interesting thing is that the colors are different from one cat to another.
Foote continued that the cat’s tapetum is usually yellow-green or yellow-orange. However, these colors vary depending on the color of each cat’s iris.
The same is explained in the siteOptimax Clinics. The site explains that cat eye color consists of riboflavin and zinc molecules, these two compounds affect the eye color.
More specifically, it is explained that kittens’ eyes are usually brighter in color than older cats. This means that the eye color of older cats will be more dull.
What about the red eye color of cats in the dark? Actually, the red color is a sign that light has difficulty reaching.Tapetum lucidum. This condition is common in older cats.
Do Cat Eyes Glow in Daylight?
Still from the same source,Optimax ClinicsIt should be explained that a cat’s eyes should not glow during the day. If this occurs, it means that your cat’s dilated pupils are capturing a large amount of light. This condition is quite dangerous for cats.
It also includes when a cat’s eyes glow continuously in dim or dark environments. For example, if you place a cat in a dark room for an hour, the cat’s eyes will glow but only for a few moments. Although they often glow, there are times when their eyes do not glow.
If the eyes glow continuously, for example, in the case of a cat’s eyes glowing non-stop for an hour, this condition is a sign that there is a vision disorder in the cat. Immediately perform further examinations to accurately diagnose the cat’s health condition.