My goldifsh went white about 4 years ago, and about 1 year ago somthing started happing 2 its eyes i took no notice of it but now im a bit worried that it might be going blind, well its one of the eyes, there a kind of seal over the eye u can only see the pupil of the eye from the side, and from the front the eye comes at u like there glass on it its wierd any ideas?? And its not popeye