Often the large red mass of tissue in the corner of the cat’s eye is the only symptom that the pet owner sees. Cherry eye rarely occurs in both eyes at a time; rather the cherry eye just pops out in one eye. The eyelid does not gradually slip out of place, it happens over a short period of time, and pet owners are often shocked to see that their cat which looked fine a few minutes ago now has a large red blob in the corner of the eye.