Amber eyes are rare.
From Wikipedia. Amber or yellow eyes.
Even though amber is considered to be like gold, some people have russet or copper colored amber eyes that many peoplemistake for hazel, though hazel tends to be duller and contains green with red/gold flecks, as mentioned above. Amber eyes may also contain amounts of very light gold-ish gray. Green irises, for example, have blue and some yellow. Brown irises contain mostly brown. Some eyes have a dark ring around the iris, called a limbal ring. Eye color in non-human animals is regulated differently.
Yellow eyes could be the affect of a disease like Jaundice, Hepatitis and cirrhosis, But it is also a rare color of an eye