Today in a biology class, my teacher got onto the discussion of melanin, particularly in the eyes. I am wondering about the amounts in each eye colour. I know brown has lots of melanin, green has moderate amounts and blue has low amounts, but is this actually right? And if so how do they absorb the same amount of light required for normal vision.
I was thinking that brown has high amounts of eumelanin, but low amounts of pheomelanin, green has moderate amounts for both, and blue has low amounts of eumelanin but high amounts pheomelanin.
Is this correct? I can't seem to find anything on it.