Here is a link I found; I think this is what the Cat Fancy article was about.

I guess only the vet can tell you if it is cause to be worried. But if it is this stuff, the longer you wait, the worse off the cat will be. As the article says, in the early stages it is treated with meds. Only later is eye removal the only option.

http://www.petplace.com/cats/corneal...rum/page1.aspx