The Assessment of Iris Pigmentation - Rx - (sus)

Could you identify and analyse the iris pigments at different iris zones in various aspect levels ?
To analyse the iris pigmentation should be considered as follow:
a) The structure, size, shape and border of the pigments.
b) The topographical areas of location of the pigments - pupillary zone, internal collarette border, external border of the collarette, ciliary or limbus zone.
c) Is it a solitary, co-sign with structural signs or more than one pigments ?
d) Differentiation of the iris pigment type/density and color - concentrate, haze, diffuse, orange, brown, yellow, sandy, salmon pink, dark brown and black !