Some of the cats were deaf in only one ear - interestingly if a cat had a blue eye on the right side of her head she tended to be deaf in the. Blue eyes resulting from an absence of pigment in the iris is common with pigment-associated deafness but is not in and of itself an indication of deafness or the presence of a deafness gene. Are White Cats With Blue Eyes More Likely To Go Deaf White Cats Cat With Blue Eyes Pretty Cats However most often hearing impairment caused by degeneration of the inner ear occurs in blue-eyed white cats and this problem is associated with the W gene. . Cats with unequal eyes 30-40 probability. The pure white cat with luminous blue eyes is an attrac- tive image familiar to many. The percentage rises to 40 percent if the cat has one blue eye while 65 to 85 percent of all-white cats with both blue eyes are deaf. Researchers have found that 17 to 22 percent of white cats without blue eyes are born...