Healthy cats eyes   

Cat’s eyes! Domestic cat’s eyes are healthy and beautiful when being bright and clear. Cats have a wide range of eye colours which come in many shades. The eye’s shape can be oval, round, or almond-shaped depends on the cat’s sort. Pupils in a cat’s eyes are always oviform for comparison  – humans have round pupils. In healthy cats’ eyes, we can see their colour, shape, and pupil. The edge of the lens is not visible when the eyes are healthy.

Cat’s eyestalk 

 Cat communicates with eyes. A cat can squint, open eyes fully or partially close them. Cat’s pupil can shrink, widen or stay in normal-sized form. Pupil size indicates the amount of bright light that shines on a cat’s eyes or some trouble. Pupil size and eyelid position can display emotions, indicate environmental light intensity, or show some disease. Here are some examples:

  •  Shrinked pupils – the light shines in a significant amount on the cat’s eyes surface.
  •  Shrinked pupils in low lighted ambient – the cat is in pain
  •  Pink eyes  – the cat is in pain directly connected with conjunctivitis
  •  Wide – open eyes with regular pupil size – cat feels friendly and comfortable
  • Staring eyes in squinty form with shrunk pupils – the cat is ready to confront in an aggressive mood
  • Staring without blinking – the cat is not satisfied but still doesn’t want to fight
  • Blinking eyes – if the blinks go slow cat is in a loving mood, ready to share the affection
  • Excessively blinking eyes – the cat has an eye discharge problem
  • Purulent eyes, Pus-eye, sticky eye  – the cat has some upper respiratory infection
  • Tearing eyes – the cat has an allergic reaction
  • Dry eyes  –   connected with one of many diseases or immune-mediated disease.
  • Inflamed  or injured eye’s lens (eye’s surface ) – eyes disorders

If you notice your cat has pink, purulent, tearing, dry, excessively blinking or injured eyes, please, contact your local veterinarian immediately as your cat needs professional help and care. Minor eye problems can release a devastating outcome.

Cat's eyes

Cat-eye color

Cat’s eyes can be hazel, amber, golden yellow, lemon yellow, yellow, green, blue, orange, or copper-colored.

Color may vary in tone and can depend on environmental light sources. In some cases, one cat can have every eye in distinct color (odd-colored eyes) when each iris has a different color or dichromatic eyes when the iris has two specific colors within both eyes. Every tiny kitten has greyish blue eyes until its eyes developed the actual color.

How cat gets color of the eyes


Genetically, eye color determines the quantity of melanin. Melanin is a term for a group of pigments. It can be found in different organisms: humans, animals, plants, bacteria, and in various tissues of their organisms. Pigment melanin gives to cats the color of the eyes, skin, fur.  The eye’s iris contains pigments called melanin. There are more pigmented areas in the organ of sight, but pigments in the iris directly give eyes the color. Iris surrounds a black hole pupil, and it has a function to limit the amount of light that enters the eye from lens to retina. Melanin helps to make the iris opaque. It seems like bright eyes are light-sensitive than darker ones as they are less opaque.  Inherited pigments that cause the color of the coat and fur pattern aren’t the same pigments that cause the color of the eye. That’s why we can see cats with dark skins and light-colored eyes. The dark fur has a lot of melanin – blue eyes don’t have any.

Kittens’ eyes color

Just born kittens have grey-blue eyes called cloudy blue. Three months later, the kitten’s eyes develop a permanent color of the cat’s eyes.

Cat’s vision

Cat's eyes

In nature, cats are active at dawn and dusk. Their’s eyes have developed more photoreceptor cells that function in fewer light environments or night periods. For every animal whose eyes have more rod cells than cone cells, we say that animal has night vision – as you conclude, the cat has night vision.   Cats have seven times more rod cells and a wider field of view than humans. Cat’s peripheral vision has developed distinctly. Also, they can see some wavelengths of light humans can’t see., but humans are better preceptors of all colors as they have enough cone cells (cones serve to see color). When it comes to daylight and bright-light vision – cats don’t recognize all movements as their eyes are adapted tonight, or better said, dusk and down.

Human’s vision compared to cat’s vision

Human’s resolution is better – humans can see much more sharply when objects are far away. We used to emphasize cat’s eyes as they have some abilities we don’t have. But it is not sawed as we don’t have what we don’t need – the same works with cats. But there is something special in the cat’s eye – an elliptically shaped eye, over-sized in head proportion with a layer of tissue reflecting light, tapetum lucidum, giving the watch the reflection and shine. At night, if we see the pair of lighting dots on the roof or in some dark street, maybe it’s just a cat!

Cat’s eyes illness

Cat's eyes

If the cat’s eyes look gooey, strange, and different, something is happening.  Redness, discharge, cloudiness, a change in shape or color, change in usual sensitivity to the light show us our cat has some eye problem. The cause can be a cold, incidentally superficial injury, or the sign of serious illness. Eye problems can lead to harmful outcomes, even cat blindness. If you notice something has changed in the color and clarity of the cat’s eye, shape and color, always contact the vet. Your cat may temporarily change her behavior and act like another cat as she will be in pain and struggle during the eye disease phase. Some viruses, bacteria, allergens, or weakened cat immunity can cause eye disorder.  If you notice some eye deviation in your cat’s eye, please, contact the veterinarian right now. Your cat can suffer from upper respiratory infections, conjunctivitis, corneal disorders, uveitis, or some other disease or trouble connected with the eyes. 

Home care for cat’s eyes

Everything you can do is regularly vaccinating your cat. Vaccination will prevent many possible diseases. If a cat’s eye discharge appears, you can help your cat while waiting for the vet appointment. You will need cotton balls and clean water to wipe away the eye discharge. Always wipe away fresh cotton balls,  pre-dipped in water, from the eye corner outward.

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