They've always been dark brown, but when l woke up today they're now only dark brown near the pupil, and the rest is dark green.Why did this happen, and do l need to see a doctor?

do you were contacts if not see a doctor

they didnt change colors.

Weird, that happened to me too! During puberty, l think l was 13 or 14. l do not think it was an overnight change, but l do know my eyes used to be a lovely chocolate brown, & now they're a dark green hazel. Mine turn bright green when l cry, do yours?

I've never heard of it happening to anyone else, but it is mentioned briefly in this cool article on eye colors:

EDIT: l found another article, this time from a geneticist, stating that 15% of caucasians experience an eye color change during puberty. Link below: