The color of the eyes can change over the course of life, however only 10-15% of Caucasian people experience this variation. Who as a child had gray or green eyes can find himself with a darker shade, especially after adolescence, when the production of melanin increases. Furthermore, it may happen that brown or hazel eyes tend to lighter shades with advancing age.
Both the color of the eyes and the age-related color changes depend on the genes . In all these cases, however, these are minimal changes, where the basic color obviously remains unchanged: a brown iris cannot become blue and vice versa.
