Weird color on my hens eyes...?!

[-Flash-]

Yeah! I have two hens with this, its strange!

 

[Kearaaaa23]

I couldn't find any information on this occurring specifically in chickens. But I copy pasted this off the Wikipedia website. Hope it helps


Heterochromia of the eye (heterochromia iridis or heterochromia iridum) is of three kinds. In complete heterochromia, one iris is a different color from the other. In sectoral heterochromia, part of one iris is a different color from its remainder and finally in "central heterochromia" there are spikes of different colours radiating from the pupil.

Though multiple causes have been posited, the scientific consensus is that a lack of genetic diversity is the primary reason behind heterochromia. This is due to a mutation of the genes that determine melanin distribution at the 8-HTP pathway, which usually only become corrupted due to chromosomal homogeneity.[3]

Eye color, specifically the color of the irises, is determined primarily by the concentration and distribution of melanin.[4][5] The affected eye may be hyperpigmented (hyperchromic) or hypopigmented (hypochromic).[3] In humans, usually, an excess of melanin indicates hyperplasia of the iris tissues, whereas a lack of melanin indicates hypoplasia.

Hello, my baby chick has a similar thing but on the edge and near the pupil. The grey colour is nearly identical to this person's hen and the pupil is still perfectly circle and black. Is it normal pr something i should be concerned about?