why were my eyes green until I turned five? Now they’re different shades of dark brown
In: Biology
You possibly live somewhere that plays marbles with high stakes as it was originally intended?
Eye color isn’t stable in humans until 6 years old. As a child grows the iris of the eye will slowly develop more melanin causing a darker color to appear until that part of growth has finished.
Your eye color is based on two things. Firstly, the physical structure of your eyes, which is what creates the blue or green base color patterns. Secondly, on the amount of melanin, or brown pigment, present, which darkens them.
At the most basic level, these are all genetic, but environment can change how they are expressed. Newborn babies, for example, have light eyes, because their melanin production hasn’t fully kicked in yet.
In your case, you definitely have the necessary genes for brown eyes, but something in your young childhood caused them to not really kick in fully until later. No real way to know exactly why, bodies are weird.
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