By the way, I didnt mean to suggest you lance that thing yourself. Id only recommend someone experienced do it. The hen should see a vet if you want to save her. She WILL be in severe pain if left untreated. Remember too, that animals are good at hiding things like pain or disease. Sort of a "don't look at me mr. predator, Im healthy and hard to catch" kinda thing. I imagine if my eye looked like that, Id be quite uncomfortable! If you cant afford a vet, the most humane thing to do is to cull. If she could go to the vet, Im confident she could be saved, although she'll most likely lose the eye. Im sorry for your poor little hen. I hope all goes well! Good Luck!