Barbara Marquand is a staff writer at NerdWallet, a personal finance website. Email: bmarquand@nerdwallet.com. Twitter: @barbaramarquand.
The eye may change color due to alteration of genes in the cells of the iris. This is because of your DNA factors in the body. The gene alteration can cause the eye to change color from brown to green and vise verse. There is no any explanation to the cause of the genes behaving in these manner. Prolonged exposure to the sun might also be another cause that made my eyes to change the color.
Later Factors That Influence The Baby Eye Color Changes. Even after the usual one-year mark, the babyâs eyes might change color. Some diseases may reduce pigment, as noted by the Tech Museum. Also certain viruses may increase it. The hormones of puberty occasionally may affect the genes which regulate eye color.