What part of the human eye defines the eye color?

Green eyes are the only ones that change colour, they can go from green to blue then greyish , it can depend on the colours you’re wearing such as purple emphasis green, crying or having a sun tan can bring out the blue

Mirza, people with blue eyes see better their light colored eyes let in more light

rcc, u still have 2 brown eyes but 1 u can't see, lol

Those were some eye opening facts!

There are many eye colors..

Player #46835611, neither is mine!

Player #28825483, Mood and health can also be factors.

Player #28825483, I have green eyes and if the color fluctuates I would think it would depend if I were in bright light or not. Unsure.

yeah it's Ires.. it's really great knowledge ♥