I have an older EE hen who I just noticed had clear bubbles in the corner of her eyes. They are not swollen and she seems otherwise healthy. I have already read older posts suggesting it's a respiratory infection. Are there any other non-serious causes of eye bubbles or should I cull asap? Is it worth giving it a day or two to see if it clears up? I'm not interested in trying to treat it if it is an infection. I assume the meat would be good if I took care in the cleaning and cooked it properly, what do you think?