it looks respiratory in nature.I'd start with a powerful antibiotic to help her. something like tylan 50 injectable. dose is large birds 1/2cc once daily for 5 days small birds 1/4 cc.not exactly sure whats going on here but I'd try the antibiotic. i do know respiratory illness can effect the eyes. I'd give tylan a try.also look up mycoplasmosis. in my health book this can affect the eyes like this and picture looks similar to that in my book of chicken illnesses. see if symptoms look similar to you.if it is that the book said tylosin or tylan will help. good luck and best wishes