Why is my iris yellow?

Asians are originally yellow, and the iris contains pigment. Yellow people contain more pigments, which are brown and look like black from a distance. If you look closely, you can actually see that it is yellow. Are you sure you said iris, not sclera? If the sclera is yellow, it may be jaundice. Jaundice is the yellow staining of human skin, mucous membrane and sclera, which is caused by high bilirubin level in the body, and it may also be caused by eating too much oranges, oranges, carrots and other foods. If this is the reason, stopping eating these foods will return to normal.