Many babies--especially Caucasian infants--have blue eyes when they enter the world, even though most of them will not have blue eyes when they grow up. Through a quirk of gene regulation and pigment production, a baby’s eyes may change or darken as he passes through infancy, explains by Dr.

Genetics determines eye color, but the inheritance patterns are complex. Because of this complexity, children can have different eye colors than their parents. Iris eye color can change during a person's lifetime for several reasons.