Chicken eyes are red

[pepinofn8]

I am raising baby chicks. Now they are 9 weeks old. Can anyone tell me please why their eyes are red like pictures I will attach.

 

[mommiesrcool]

I am raising baby chicks. Now they are 9 weeks old. Can anyone tell me please why their eyes are red like pictures I will attach.

It could be coccidiosis but I'm not an expert hopefully someone else with more experience can help you