Cloudy Ring around eye?

[bernabei]

My Hen. Butterfly has a dougnut shaped cloudy ring around its eye. This is a fairly new fish to my tank and was healthy when I got it. I went on Vacation for 6 days and I don't think my timer worked on my light so the light was on straight for six-7 days. Not sure if this could have caused it but what do i do if anything? No other fish are presenting any signs. Kelly
I posted this in the disease part also but I am not sure if that is what it is?

 

[bernabei]

Here is a pic- Not sure how much you can see.

 

[bernabei]

Weel, I went to my local fish dealer and he gave me an antibiotic. I hope this works. Has anyone had good results with anything like this?