Subject: Ophthalmology, eye color, Heterochromia Iridis

I need to know about heterchromia iridis, A difference of color between 
the iris fo one eye and other eye, and the difference of color in the same 
eye. I need more indepth explanation. I understand that the degree of 
pigmentation (chromatophore collection) pigment-bering cells in the stroma 
of the iris determines the color of the eye. I also need to know how 
genetics determines this condition.

Re: Ophthalmology, eye color, Heterochromia Iridis