It is just the one hen, but I've had two die in the last two weeks for reasons unknown. As far as I can see there is nothing in her eyes but we've ordered some medicineMost likely a respiratory issue. Is it just the one hen? Have you been able to look close to see if there is anything in the eye?
Thank you so so much!Here's a thread with advice regarding treating respiratory illnesses.
Tylosin is mentioned, so maybe the amtyl will be effective.