White Cat With One Blue Eye Deaf. The reason is the aforementioned w. Need less to say your cat is not totally deaf either way.
While there is a clear correlation between the blue eye color and deafness in white cats, why is this so? White spotting and white are also different genes but it's the white that can cause deafness. Either is is only deaf in one ear or completely fine hearing out of both ears.
Usually, not always the side with the blue eye is the deaf eye.
This is a feline form of complete heterochromia. When the white spot gene affects both eyes the cat will have blue eyes. You can help a deaf cat lead a happy, full life by keeping it protected indoors and learning to use visual signals and vibrations to communicate. Blue eyed cats are more often deaf than white cats with other coloured eyes.