Christine c/o Jason Barroso Re: Killer's Eye Problem I've not seen a ferret with two different colored eyes before. A cataract will appear as a clouding of the pupil, since it is a clouding of the lens inside of the eye. A film across the eye may be caused by a number of things. Such as an infection of the surface of the eye, as in conjunctivitis. Possibly it may be caused by a blocked tear duct, althought it should be accompinaied by excessive tearing. In any case It's best to have your vet check it out. [Posted in FML issue 2274]