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 →
Yes, cats’ eyes are more sensitive to light than those of humans. This is why they shine in the dark because of a reflective layer behind the retina which is called the tapetum lucidum – translation: “bright tapestry”. Humans do … Continue reading →
The domestic cat has a tendency to be more active at night although they are not wholly nocturnal. They are described as crepuscular, meaning active at dawn and dusk when hunting is more successful. In general, when possible they tend … Continue reading →
The question in the title is probably meant to mean: do cats see objects under ultraviolet light only? For humans, ultraviolet light is beyond the visible spectrum and so we can’t see it. However, fundamentally, the anatomy of the cat’s … Continue reading →
Cats cannot see infrared light because it is not part of the visible spectrum. In this way cats are identical to humans except there MAY be a difference in that it is said that cats might be able to see … Continue reading →
