Oh no! There is something in my chickens eye! Well, that may just by an eye stye!

I have looked on information regarding styes in chickens, and have found very little. I hope I have helped here compiling what I know.

Basic Information on Styes:
There are two types of styes: external and internal. Both are painful. The external styes develop on the outside of the eyelid, right next to an eyelash. This type of stye goes away on its own in a few days to a week. An internal stye is on the inside of the eyelid. Now the internal stye infection can go away, though it may leave a fluid filled cyst or nodule. Styes are not to be confused with fowl pox or a bee sting.

What Causes Styes?:
Styes are caused when are caused when a gland in the eyelid becomes plugged or blocked, resulting in a tender sore on the eyelid.

Is It Really a Stye?:
Before you start trying to treat the stye, first identify if it's really a stye. Chickens eyes can be swollen for other reasons too. It will look like a inflamed abscess or pimple around the eye.

Picture from of @Peep-Chicken

It May go Away on Its Own:
Styes can go away on their own. If your chicken still has a stye after a week, it's time to intervene.

Treatment:
You will probably need to people to do this. You will want a towel with warm water on it. Gently dab it on the stye everyday until the stye pops on its own. Never pop the stye yourself! This can do more harm than good. Remember, styes are quite painful. Get some antibiotic ointment (it can't have 'caine' in it) and put it on the stye. Don't get this in the eye, it can sting.

If a few weeks pass and the stye hasn't gone away, you may need to take your chicken to the vet for it to be removed.

Styes seem pretty uncommon in chickens. If anyone has more picture and/or information on them, let me know! I hope this helped!