my eyes change color too....they change between brown, green, blue, and gray.....and sumtimes they will be all the colors at the same time sometimes
it annoys we cause i never know what color eyes i have at the moment but other times i love it because my freinds are amazed at what my eyes do.
Mine change color as well, and people say it's in congruence to what i'm wearing.But, iv'e found that if I intensely concentrate on that color
whilst looking into a mirror, they change.