Why Do My Cats Eyes Change Color?

Why Do My Cats Eyes Change Color
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Last Updated on February 23, 2023 by Pauline G. Carter

There are a few reasons why your cat’s eyes may change color. One reason could be due to their diet. If they’re not getting enough of the right nutrients, it could affect their eye color.

Another reason could be genetics. Some cats are simply born with different colored eyes. And finally, age can also play a role in eye color changes.

As your cat gets older, their eyes may start to change color as well. So if you’re wondering why your cat’s eyes seem to be changing colors, it could be any one of these reasons (or a combination of them).

There are a few reasons why your cat’s eyes may change color. One reason could be that your cat is sick. Certain diseases can cause a change in eye color, so if you notice that your cat’s eyes have changed color, it’s important to take them to the vet for a checkup.

Another reason why your cat’s eyes may change color is due to aging. As cats get older, their eyes may start to turn yellow or green. This is perfectly normal and nothing to worry about.

Finally, some cats simply have naturally-occurring changes in eye color. This usually happens when they’re kittens and their eyes haven’t fully developed yet. Once their eyes are fully developed, they should settle into one final eye color.

Ask the Vet: Why do kitten’s eyes change color?

Cats Eyes Change Color With Mood

Cats are well known for their big, beautiful eyes. And it’s no secret that those eyes can change color. But did you know that the color of a cat’s eyes can actually change based on its mood?

That’s right – if your kitty is feeling happy, you may notice its eyes take on a more greenish hue. If your cat is feeling angry or threatened, its eyes may appear more yellow or orange. And if your feline friend is feeling scared or anxious, its eyes may look more dilated and appear darker in color.

So next time you’re looking into your kitty’s cute little face, take note of the eye color! It just might give you a clue as to what’s going on inside that head of theirs.

Cats Eyes Change Color from Blue to Green

As a cat owner, you may have noticed that your feline friend’s eyes change color as they age. While a kitten’s eyes are typically blue, they will eventually turn green, yellow, or even brown. So why do cats’ eyes change color?

It all has to do with the development of the eye. When kittens are born, their irises (the colored part of the eye) are not fully developed. As they grow and mature, their irises begin to produce more pigment, which gives them their final eye color.

So if you’ve ever wondered why your cat’s eyes changed color from blue to green (or any other shade), now you know!

Do Cats’ Eyes Change Color at Night

Most cats’ eyes change color at night. The reason for this is that their pupils dilate in the dark, which allows them to see better. This also makes their eyes appear brighter and more reflective.

Sudden Change in Cat Eye Color

If you notice a sudden change in your cat’s eye color, it could be a sign of a serious health condition. There are several conditions that can cause a change in eye color, including: 1. Cataracts – A cataract is a clouding of the lens of the eye, which can lead to decreased vision.

If your cat has developed cataracts, you may notice that their eyes appear white or blue. Treatment for cataracts typically involves surgery to remove the cloudy lenses. 2. Glaucoma – Glaucoma is an increase in pressure within the eye, which can damage the optic nerve and lead to blindness.

Signs of glaucoma include redness in the eyes, tearing, and pain. Treatment typically involves medications or surgery to reduce the pressure within the eye. 3. Uveitis – Uveitis is an inflammation of the uvea, which is the middle layer of the eye containing blood vessels and pigment-producing cells.

This condition can be painful and leads to increased sensitivity to light. Treatment typically involves corticosteroid medications and/or surgery.

Why Do My Cats Eyes Change Color?

Credit: cleverpetowners.com

What Does It Mean When Cats Eyes Change?

When a cat’s eyes change, it can mean a few different things. For one, it could be an indication of their mood. If a cat’s eyes are dilated, it means they’re excited or stressed.

If their pupils are constricted, it means they’re relaxed. Secondly, eye changes can also be due to health issues. If a cat’s eyes are suddenly cloudy or have discharge, it could be a sign of an infection.

Thirdly, cats’ eyes may change as they age – older cats often have more yellowish-hued eyes. So, if you notice your cat’s eyes changing color or appearance, it’s best to have them checked out by a vet to rule out any potential problems.

What is the Rarest Color of Eyes for Cats?

There are a number of different colors that cats’ eyes can be, but the rarest color is green. This isn’t necessarily due to any genetic reason, but simply because green is much less common than other colors like blue or yellow. In addition, some cat breeds are more likely to have green eyes than others.

For example, Siamese and Oriental shorthairs are two breeds that often have this eye color.

Can Eyes Change Color With Mood?

The answer is yes, eyes can change color with mood. However, it is important to note that this change is usually very subtle and not always noticeable. The reason for this is that the human eye is made up of many different colors, all of which can be affected by changes in mood.

For example, when someone is feeling happy or excited, their pupils will often dilate ( widen ) in order to take in more light. This results in the iris (the colored part of the eye) appearing darker than usual. Conversely, when someone is feeling sad or anxious, their pupils will often constrict ( get smaller ), resulting in the iris appearing lighter than normal.

So while mood can definitely affect the color of your eyes, it’s important to remember that these changes are usually quite small and may not be noticeable to others.

Why are My Cats Green Eyes Turning Brown?

It’s not uncommon for a cat’s eyes to change color as they age. While most cats have yellow or green eyes, some may have blue, hazel, or even brown eyes. However, if your cat’s eyes are turning brown, it could be a sign of something more serious.

While a sudden change in eye color isn’t always cause for alarm, it can be indicative of an underlying health condition. For example, if your cat’s green eyes are turning brown due to jaundice, this could be a sign of liver disease. If the change is due to an increase in melanin production, it could be a sign of melanoma.

If you notice that your cat’s eyes are changing color, it’s important to take them to the vet for an examination. Only a thorough exam can determine the underlying cause and rule out any potential health concerns.


There are a few reasons why cats’ eyes may change color. One reason is that as cats age, their irises may become lighter in color. Another reason is that some cats have genetic conditions that cause their eyes to change color.

Finally, certain medications or diseases can also cause a cat’s eyes to change color. If you notice that your cat’s eyes are changing color, it is best to consult with your veterinarian to determine the cause and whether any treatment is necessary.

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