White Cats With Blue Eyes Are Usually Deaf. Why are blue eyed white cats usually deaf. An estimated 40 percent of white cats with blue eyes are deaf, which is high.
White cats simply have a gene for white fur, while albinism is a genetic condition that results in a complete lack of color pigmentation in the skin, fur, and eyes. Deafness is far more common in white cats than in those with other coat colours. And, if the white cat has a different eye color for each eye (heterochromia.
Still, look at it this way:
Congenital sensorineural deafness occurs in domestic cats with a white coat. The roll of the genetic dice that produces a white. Reports of this condition date back to at least the 1930s (bamber, 1933), and many investigators have studied it in. Unless both ears are affected, cats may never show any signs of hearing loss.