So yesterday night my chicken seems to have something wrong with her left eye, at the time it was not swollen nor was it watery but seemed to be 'sunken' a bit more than her other eye. We simply dismissed this as it was late at night, and she didn't seem to have anything wrong with her in the morning or afternoon. However I went to check this morning and discovered one side is significantly more swollen than her other, and some slight liquid-substance near the bottom of the swollen eye. I'm beginning to get worried about this, and I've checked some other threads with similar symptoms but it seems quite obscure.
Here are pictures for comparison:
Swollen Left Eye
Normal Right Eye
(Please excuse me if I did some formatting stuff wrong, not sure how to make these large pictures smaller)
I have no idea what this is, but generally any past problems this chicken has had, she's managed to pull through by herself. As always, I am very worried for her health and any insight into what this is, and how to treat it would be greatly appreciated. Thanks everyone!