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…
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…
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…
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…
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…
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…
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…
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…
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…
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…
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…
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…
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…
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…
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…
