Introduction
Cherry eye in cats is a condition in which the third eyelid falls down or slips out of place and is then visible in the corner of the cat’s eye. Unlike people which only have 2 eyelids, cats have another eyelid that is normally invisible otherwise known as the nictitating membrane. The function of this third eyelid is to help protect and moisturize the eye through its tear gland.
The result of the third eyelid slipping out of place or falling down is a big red blob in the corner of the cat’s eye that appears suddenly; understandably pet owners are alarmed when they see what has happened to their cat’s eye. While the condition is not dangerous, it does need to be treated to prevent chronic inflammation, dry eyes, and irritation to the eye. Cherry eye normally occurs in one eye at a time; it rarely occurs in both eyes at the same time.
Causes of Cherry Eye
The exact cause of cherry eye is still unknown. As this condition seems to appear more often in certain cat breeds, it is believed to be a genetically inherited condition which results in weak connective tissue around the third eyelid. Cat breeds that tend to experience this condition the most include: the Basset Hound, the Beagle, the Bullcat, the Cocker Spaniel, the Neapolitan Mastiff, and the Pekingese. The condition also occurs more often in younger cats.
If your cat is experiencing what looks to be a cherry eye, make an appointment with your veterinarian as soon as possible. Do not touch the cherry eye or try to move it around; this can cause further irritation and inflammation. If you notice any discharge coming out of the cat’s eye you can gently remove the discharge with a tissue that has been moistened with saline or water.