My 5 month old chicken has developed a bulgy eye. Looks to be her second eyelid (nictitating membrane) that is swollen. Haven't noticed any respiratory issues or pus around the eye. She is eating and laying as normal. Does anyone know how to help her?
It might be a cyst or tumor. Have you seen any bubbles or foam in the eye? I would try to apply some antibiotic drops or ointment into the eye a couple of times a day. It doesn’t look like the typical sinus swelling that mycoplasma typically causes. Can you see a vet?