MadSci Network: Evolution |
I would like to know the why some people have blue and some have brown eye color, usually people with blue eyes is found northern Europe. I think it has something to do with the ambient light condititions, but I can only speculate about the details. How will blue eyes increase the light sensitivity? I know that the iris (and also the white part of the eye) is partly (diffusively) transparent, but image information surely can not pass through these parts. Peter W e-mail: peter@physto.se
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