Blue eyes and sometimes pure white fur in cats is linked with defects, recessive traits, amd poorly controlled inbreeding. Cats with blue eyes are often deaf, and may harbor other quirks/defect. Kittens of this variety may die early. Due to costly vet visits, despite their beautiful appearance anyone who desires cats and takes the time to study before getting them often refuse to take them.
Learned this the hard way when I got a pure white with a copper and blue eye. The side of the head that had the blue eye was deaf. He had a weak immune system. Died earlier of cancer.