What is going on with my chickens eye?

[DustyChickens]

This is the only chicken in my flock that seems to have this problem. It doesn't seem to be sick in any other way. Does anyone know what this could be and what I can do to cure it?

 

[Dee Dee 2]

check for eye worms. Polysporin NOT Neasporin may help. Looks like another bird in pic. far right has an eye prob. or was it just closed when pic. taken. Poor chickie.