I don't know if its serious, but any ideas would be helpful!

[eggsrcool]

Hello. Today I noticed one of my hens had a large pupil on one side and a tiny pupil on the other. I lloked at the other hens and noticed they had quite large pupils. The hen with the large and small pupils is a cream legbar and is one of our best layers, probably born last year.
Any thoughts would be great!!!

 

[chickensioux]

Hello, at any time could another chicken have caused an injury? Hope some one else can think of something. Good luck

 

[eggsrcool]

Not really, she has been here for about 6 months, but I never noticed the pupils being large and small.

 

[The Chickens' Maid]

Ours like to do weird things with their eyes; I don't know if they can do something like this, though.

 

[SundownWaterfowl]

Im pretty sure mareks disease can make the eyes look strange.

 

[onthespot]

have you tried shining a light close to it to see if it reacts to light? Might just be defective iris... maybe...