there is a frequent false impression that all odd-eyed cats are born deaf in one ear. This is not true, as about 60%–70% of odd-eyed cats can hear.[4] About 10%–20% of normal-eyed cats are born deaf or come to be deaf as section of the tom cat ageing process.[4] White cats with one or two blue eyes do, however, have a higher incidence of genetic deafness, with the white gene on occasion causing the degeneration of the cochlea, beginning a few days after birth.[13] If a white kitten has any speck of another color, the frequency of deafness is appreciably diminished, even if the speck of coloration fades as the cat will become extra mature
