I phoned the vet for appointment only to be told he is on holidays and the other vet dosn't know what to do,we have just fed her a worm and had a good look at her, I'm sure the eye has been injured and a skin has grown over it for protection,as she is eating I dont think she can be in any pain, we will examine her daily I'm thinking it might heal on its own, all water conditions are as they should be, It dosn't look as if there is much I can do