A Michael Broad Blog
As per the Cat Fanciers’ Association (CFA) breed standard the eye colour of the Siamese cat is always a “deep vivid blue” and that eye colour is the same across all the different Siamese cat colours from seal point through to chocolate point, blue point and lilac point. And it is the same across …
The title sounds unfair and biased but it isn’t as it is based in biological fact. The prevalence of deafness in pure white domestic cats varies depending on whether they have two blue eyes (the highest proportion of deaf cats), odd-eye colour or non-blue eyes (least likely to be deaf in both ears). Where …
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 centre that she adopted her former cat from, whose name was Luna. Luna died …
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 by cells called melanocytes. The amount of pigment produced and the way that melanocytes …
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 not have this layer and it allows the cat to capture light more effectively. …
People ask the following questions about blue-eyed cats: Are blue-eyed cat deaf? Are blue-eyed cats blind? Are blue-eyed cats rare? Are blue-eyed cats more sensitive to light? Are blue-eyed cats more expensive? These are my answers: Blue-eyed cats are often completely white or they have large amounts of white in their fur. The two …
There is physics behind the answer to the question, which may displease some readers and I’ll understand why! By six or seven weeks of age a kitten’s eyes begin to change colour from blue to the colour that their genes dictate that their eyes should be. In human babies the change takes place at …
The blue eyes of Atlas and Trico crackle and sparkle. There is almost a texture in them. I am not sure why these eyes have this ‘texture’ as I have described it. A lack of pigmentation in the iris of eyes makes them blue because of white light refraction. This is why the eyes …
