<!-- International topic, see MOS -->
(, 'Blue Eyes') was a breed of shorthaired domestic cat originating in the USA, with unusual blue or odd eyes
History
In the 1980s cats with dark blue eyes were discovered among feral cat populations in New Mexico, USA. The first cat with the characteristic, discovered in 1984, was a tortoiseshell named Cornflower. She was bred to males without the trait, which proved to be dominant, as all her kittens showed it. The breed was founded and named , Spanish for 'Blue Eyes'. No other breeding programmes of descendants are known.
Characteristics
Appearance
The medium-sized was known for its bluish eyes, which were large and round. The mutation is not associated with strabismus (crossed eyes) or deafness, though light sensitivity and pupil contraction issues have been observed in heterozygous individuals. Cats carrying these mutations were discovered among random-bred domestic cats in Kazakhstan and Russia, and have since formed the basis of the developing Altai, Topaz, and Celestial breeds, and have been recognised by some registries as eye-colour variants within existing breeds. These cats are not considered , however, because that breed is defined by descent from the foundation cat Cornflower.