Most Helpful Girl
My eyes change colors on a day to day basis. Some days they're blue, some their green, some they want to be brown and others they are a mixture of any or all of those colors. I've even got a picture of them naturally being PURPLE. I can't tell you whether this is sun damage. That idea has never occurred to me. But the next time you go in for an eye exam be sure to mention it just in case. I have friends who have eyes that change colors too but we all consider it normal for our eyes. If it does turn out to be something dangerous though, please let me know!