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

My cat with eyes turned up at the outer edges like the ‘cat-eye thread life’ so popular on Instagram at present. Photo: MikeB
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?

Melania Trump’s cat-like eyes. Were they created by a cosmetic surgeon? Photo: in the public domain.
I believe the phrase means to have eyes which are almond shaped, open and lifted at the far edges. The overall appearance is wide and bright or in a word ‘hypnotic’.
This goes some way towards mirroring the natural size relative to the head size, and shape, of a cat’s eyes. Humans will never match cat eyes in size relative to head size as cats’ eyes are unusually large. If humans had an eye of comparable size it would measure about 20 cm in diameter (8 inches).
When women refer to cat eyes, they also refer to the shape and often the breed standards of purebred cats specify that the eyes should be “almond-shaped”. This is the breed standard for the Siamese cat, for instance. Also, the Siamese cat’s eyes should be “slanted towards the nose”. I read this to mean lifted slightly at the outer edges. This is also a sought-after appearance. Melania Trump has cat-like eyes that slope upwards.
Some cosmetic surgeons call the op ‘cat eye reshaping canthopexy’. The picture above shows you what it means. The objective is to enhance the eye shape from dull and tired to alluring and vibrant. They also call it the cat eye lift. It is minimally invasive and enhances a woman’s beauty. One cosmetic surgeon in America says that he “lifts the outer corners of the eyes which tilts the horizontal axis creating a more beautiful shape”. I take this to mean exactly what I have said above about the eyes of the Siamese cat.
SOME MORE ON CAT EYES:

Why do cats’ eyes glow GREEN?
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Domestic cat with triangular-shaped pupils (coloboma)
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Optical quality of the domestic cat’s eye
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2 reasons why domestic cats have slitted eyes (there are actually 3!)
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3 reasons why the eyes of domestic cats contract to a vertical slit
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Are cats farsighted or nearsighted?
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Picture of a grey cat with odd-eye colour
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Sectoral heterochromia iridum- a good example in a cat
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Picture of brown spots in a cat’s eye (iris melanosis)
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Cat-eye thread lifts are all the rage but is it right for you?
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Colour changes in the eyes of an odd-eyed white cat
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Cat’s eyes dilate after hiccup
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White Maine Coon and heterochromia iridum
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What causes the range of eye colors in cats?
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Are cats’ eyes more sensitive to light?
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Why do domestic cat eyes reflect light?
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Do cats see ultraviolet light?
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Can cats see infrared light?
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