White Cat With Blue Eyes Not Deaf. A white cat with one blue eye has a 39% chance of at least partial deafness, and a white cat with two blue eyes may have a 65% chance. Two blue eyes, completely deaf.
The deaf ear is usually on the same side as the blue eye. White cat with two different colored eyes usually means deafness as is the case with my mom's cat. 40 percent of white cats with one blue eye were deaf;
Not all white cats with blue eyes are deaf.
Unless both ears are affected, cats may never show any signs of hearing loss. Cats with blue eyes are not necessarily deaf and should not be made to suffer because of it. Cats can be deaf in one or both ears. My white cat has 2 blue eyes, and he's not deaf.