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Home→Categories Cat Anatomy→cat eyes 1 2 3 4 >>

Category Archives: cat eyes

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Why do cats’ eyes glow GREEN?

PoC avatarPosted on August 27, 2022 by Michael BroadAugust 27, 2022

Well, the truth of the matter is that domestic cats’ eyes don’t only glow green in the dark. You will see a range of colours from green, yellow-green (cyan), orange and a reddish colour. We know the reason why domestic … continue reading…

Posted in cat eyes | Tagged cat eyes, cat eyesight, retina, tapetum lucidum | Leave a reply
Tabby cat with triangular pupils which is called coloboma

Domestic cat with triangular-shaped pupils (coloboma)

PoC avatarPosted on July 24, 2022 by Michael BroadJuly 24, 2022

This tabby cat sitting outside minding his own business with a nice collar and bell to help protect the birds has very interesting eyes because the pupils are triangular-shaped due to a congenital condition called coloboma. This is particularly noticeable … continue reading…

Posted in cat eyes | Tagged cat anatomy, cat eyes, cat eyesight, coloboma, congenital deformity, congenital disease | Leave a reply
Cat eyes

Optical quality of the domestic cat’s eye

PoC avatarPosted on July 22, 2022 by Michael BroadJuly 22, 2022

It may interest cat owners that the optical quality i.e. the ability of the cat’s eye to resolve detail, is poorer than that of the human eye as per one study cited below and according to a second study the … continue reading…

Posted in cat eyes | Tagged cat eyesight, cat optical quality
A cat's slitted eye

2 reasons why domestic cats have slitted eyes (there are actually 3!)

PoC avatarPosted on July 22, 2022 by Michael BroadJuly 22, 2022

People ask “Why do domestic cats have slitted eyes?” The reasons are (a) they can use the closing of the eyelid to reduce even further the light entering the eye beyond simply closing the aperture of the pupil and (b) … continue reading…

Posted in cat eyes | Tagged cat anatomy, cat eyes | Leave a reply
135-fold change in area between constricted and dilated states. One of 3 reasons for the vertical domestic cat eye pupil.

3 reasons why the eyes of domestic cats contract to a vertical slit

PoC avatarPosted on November 25, 2021 by Michael BroadNovember 25, 2021

This is a much-discussed topic but it is also a complicated topic. Only fairly recently have scientists successfully grappled with understanding the science behind the anatomy of the domestic cat’s eye. In my opinion, there are three reasons why cats’ … continue reading…

Posted in cat eyes | Tagged cat eyes, cat eyesight | Leave a reply
Cat eyes

Are cats farsighted or nearsighted?

PoC avatarPosted on November 17, 2021 by Michael BroadNovember 17, 2021

This is a good question as the internet is confused about the answer! My personal experiences tell me that cats do not see close objects in good focus. This means that they are farsighted. ‘Farsighted’ means seeing distant objects clearly … continue reading…

Posted in cat eyes | Tagged cat anatomy, cat eyesight | Leave a reply
Odd-eye colour in an all-grey cat

Picture of a grey cat with odd-eye colour

PoC avatarPosted on October 15, 2021 by Michael BroadOctober 15, 2021

I don’t think that I have seen an all-grey cat with odd-eyes before. This picture is on the Reddit.com website. And the eye colours are interesting. The brown eye is very dark and the light green eye is, in contrast, … continue reading…

Posted in cat eyes | Tagged cat anatomy, cat eyes, cat genetics, cogenital defect, inheritance, injury, odd-eye color | 4 Replies
Melania Trump's cat-like eyes

An ‘Instagram face’ includes cat-like eyes, so what are they?

PoC avatarPosted on September 6, 2021 by Michael BroadSeptember 6, 2021

There is a surge in enquiries at cosmetic clinics for an ‘Instagram face’ which involves procedures such as high cheekbones, cat-like eyes and full lips. In this post I focus on cat-like eyes. Exactly what are ‘cat-like eyes’ on humans? … continue reading…

Posted in cat eyes | Tagged cat eyes
Sectoral heterochromia in a cat

Sectoral heterochromia iridum- a good example in a cat

PoC avatarPosted on September 4, 2021 by Michael BroadSeptember 4, 2021

I think this is an excellent, even dramatic, example of sectoral heterochromia iridum in a domestic cat. It is normally referred to as ‘sectoral heterochromia’. Heterochromia is when the eyes are different colours. We sometimes call this “odd-eye” colour. The … continue reading…

Posted in cat eyes | Tagged cat eyes, cat genetics, heterochromia iridium, sectoral heterochromia | Leave a reply
The eyes of a 21-year-old cat with iris melanosis - iris freckles

Picture of brown spots in a cat’s eye (iris melanosis)

PoC avatarPosted on July 29, 2021 by Michael BroadJuly 29, 2021

This is an excellent example – I would say an extreme example – of iris melanosis in the eyes of an elderly cat. The picture caught my eye (excuse the pun). It comes from the Reddit.com website on which a … continue reading…

Posted in cat eyes | Tagged cat anatomy, cat eyes, cat health, cat health care, cat health diagnosis, cat health problems, melanin, pigmentation | Leave a reply
Bella Hadid and her cat-eyes

Cat-eye thread lifts are all the rage but is it right for you?

PoC avatarPosted on April 30, 2021 by Michael BroadApril 30, 2021

The eyes of domestic cats are admired. The evidence is in the current rage spreading virally through Instagram for the cat-eye thread lift. This is described as a nonsurgical, convenient way of altering your appearance which lifts the corner of … continue reading…

Posted in cat eyes | Tagged anatomy of a cat, cat anatomy, cat eyes, celebrities, Facebook viral, human to cat relationship, instagram, social media | Leave a reply
Ivory has odd eye color and they change in color

Colour changes in the eyes of an odd-eyed white cat

PoC avatarPosted on February 11, 2021 by Michael BroadFebruary 11, 2021

Ivory is a 10 year old, white, domestic shorthaired cat with odd-eye colour. Her right eye is gold coloured and her left eye is yellow-green coloured. Her owner, Gabriela Carvalho, 28, a nursing student, adopted Ivory from the same rescue … continue reading…

Posted in cat eyes | Tagged blue eyes, cat anatomy, Cat Eye Color, cat eyes, cat genetics, Deafness in Cats, dominant white gene, odd-eye color, pigmentation, white cat | Leave a reply

Cat’s eyes dilate after hiccup

PoC avatarPosted on November 19, 2020 by Michael BroadNovember 19, 2020

The big question is why does a hiccup cause the muscles of the iris to contract which opens the aperture of the pupil i.e. the eyes dilate? This normally happens when the surroundings become dark and the eye has to … continue reading…

Posted in cat eyes | Tagged cat anatomy, cat eyes, cat eyesight | Leave a reply
Maine Coon with odd-eyes

White Maine Coon and heterochromia iridum

PoC avatarPosted on November 1, 2020 by Michael BroadNovember 1, 2020

This is a photograph of an all-white Maine Coon cat with heterochromia iridum. In layperson’s language, this beautiful cat has odd-eye colour. And it is a classic case of odd-eye colour because one eye is yellow-gold and the other is … continue reading…

Posted in cat eyes | Tagged cat anatomy, cat genetics, genetics, heterochromia iridium, maine coon, odd-eye color | Leave a reply
Atlas a Siamese Mix with calico coat and sparkling blue eyes

What causes the range of eye colors in cats?

PoC avatarPosted on September 23, 2020 by Michael BroadSeptember 23, 2020

The total amount of melanin (pigment) in the iris of the eye determines the range of eye colours in cats and in humans. The same principles apply to all animals with a similar eye anatomy. The pigment ‘melanin’ is produced … continue reading…

Posted in cat eyes | Tagged blue eyes, cat anatomy, cat eyes, cat genetics, dominant white gene, genes, inheritance, piebald gene, white spotting gene | Leave a reply

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