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.
By Orlin Sorensen on. in Sunglasses and the Sun. Although exposure to the ultraviolet (UV) rays of the sun or artificial sources, like a tanning bed, can be damaging to your vision, your eyes do not get sunburned the same way your skin does. They will not turn pink or red, or become a darker color.