Please really work on your friends about getting Mandy in to get this checked. What I read was from a vet and it said any texture and color change in a cats eye is cause for concern and should be dealt with asap. 60% of the cases it is melanoma and in most cases if it is then it is malignant. The eye may have to be removed it caught early enough. Let's hope it is early if it is a melanoma or that it is something less terrible.