Cats
Pink-eyed dilution has been reported once in the cat (Todd NB.
1961. "A pink-eyed dilution in the cat" Journal of Heredity 52,
pg 202). The type of dilution found in cats is blue dilution
which turns black into grey. A second type of dilution seen in
some mammals is "pink-eyed dilution" which gives a bluish-tan/fawn coat and also
depigments the eye, giving a pink or ruby appearance. This has been reliably reported only
once in cats when a pink-eyed female with a light tan coat was produced (none of her kittens
survived so pink-eyed dilution in cats seems to have been lost).
Pale irises and underpigmented retinas also occur as part of Chediak-Higashi syndrome along
with a pale coloured coat (seen in Blue Smoke Persians) .
EYE SHAPES
In addition to the different colours, there are several distinct eye shapes. These are shown in