My game hen has a yellow cheesy core right in the middle of her eye. She did have nasal discharge and the Tylan 50 cleared it all up, her appetite is good, other eye is clear also. I tried vermycin for days thinking it was eye worm...but nothing. I used a tissue and q tip and have removed the tip of it twice and its is like a rubbery film substance. It looks like it is all the way through the middle of the eye (Cheesy core). I looked up cataract pics of chickens and I have not been able to find anything that looked like what my Hen has. Help!