۱۲ جولای روز چشم رنگی های متفاوت
History of Different Colored Eyes Day
Different Colored Eyes Day was established to celebrate this beautiful variation in eyes, and to break some of the mystery surrounding it. There are many things that can cause heterochromia, some of them being nothing more than a genetic trait present from birth, others being caused by disease or injury. There are three different types of heterochromia, each one being identified by the degree to which the heterochromia exists and how it manifests.