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Cherry Eye

The cherry eye is the prolapse of a tear gland present on the third eyelid of the canine patients. In a dog with no problems, the gland stays in its proper position which is tucked nicely at the inner corner of the eye, thanks to a small ligament. When the gland pops out of its normal position, it's because of some level of laxity (looseness) or weakness of the ligament which causes the gland to start protruding as a reddish mass at the corner of the dog's eye, hence the term "cherry eye."

Surgery consists of re-positioning the gland back into its place. This is accomplished using the modified Morgan pocket technique that allows the third eyelid to move normal postoperatively, whereas some of the tacking procedures restrict the movement of the third eyelid. If the third eyelid is unable to move normally, it may decrease its ability to protect the cornea and spread the tear film.

Overall, this technique has reported to have a very high chance of success (95%) providing post-op care instruction are followed correctly. These involve:

  • Make sure the patient wears an Elizabethan buster collar (not an inflatable) so they can’t rub or scratch their eye for 14 days and administer the medication prescribed regularly.
  • Avoid any activities that will raise the pressure in their eyes, such as running, jumping, or playing.
  • Remove your animal normal neck collar while they are recovering, and use a harness instead, this is because the pressure on their neck can raise the pressure inside their eyes.

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What is Entropian?

Entropion is an abnormality of the eyelids in which the eyelid rolls inward. This inward rolling often causes the hair on the surface of the eyelid to rub against the cornea resulting in pain, corneal ulcers, perforations, or pigment developing on the cornea which can interfere with vision.

What are the signs of Entropian?

Most dogs will squint, hold the eye shut, and tear excessively (epiphora) though some patients will develop a mucoid discharge. Interestingly, many flat-faced dogs with medial entropion (involving the corner of the eyes near the nose) exhibit no obvious signs of discomfort. In most cases, both eyes are affected. It is usually diagnosed in puppies under 1 year of age.

Are certain breeds more likely to have Entropion?

Entropion is considered a hereditary disorder. While the exact genetics are unknown, many breeds are identified as having this problem. These breeds include Akita, American Staffordshire Terrier, Basset Hound, Bernese Mountain Dog, Bloodhound, Bulldog, Chesapeake Bay Retriever, Clumber Spaniel, Dalmatian, English and American Cocker Spaniel, English Springer Spaniel, English Toy Spaniel, Flat-coated Retriever, Golden Retriever, Gordon Setter, Great Dane, Great Pyrenees, Irish Setter, Japanese Chin, Labrador Retriever, Mastiff, Newfoundland, Old English Sheepdog, Pekingese, Pomeranian, Pug, Rottweiler, Shar Pei, Shih Tzu, Saint Bernard, Siberian Husky, Staffordshire Bull Terrier, Tibetan Spaniel, Toy and Miniature Poodle, Vizsla, Yorkshire Terrier, and Weimaraner.

How is Entropion treated?

The treatment for entropion is surgical correction. A section of skin is removed from the affected eyelid to reverse its inward rolling. In many cases, a primary, major surgical correction will be performed, and will be followed by a second, minor corrective surgery later. Two surgeries are often performed to reduce the risk of over-correcting the entropion, resulting in an outward-rolling eyelid known as ectropion. Most dogs will not undergo surgery until they have reached their adult size at six to twelve months of age.

"The treatment for entropion is surgical correction."

Both prior to surgery and after surgery, ophthalmic medications such as various antibiotics and artificial tear lubricants may be used to help treat secondary problems that have developed and to protect the cornea, respectively.

What is the prognosis for entropion?

The prognosis for the surgical correction of entropion is generally good. While several surgeries may be required, most dogs enjoy a pain-free normal life. If the condition is treated later and corneal scarring has occurred, there may be permanent irreversible visual deficits. Your veterinarian will discuss a diagnostic and treatment plan for your dog to help you successfully treat this condition.

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Eye Tracking

Quite often puppies are presented for tacking to correct entropion whilst they are under 6 months of age. This is performed under a quick general anaesthetic and multiple strong sutures or stainless steel staples are placed in the affected lids to prevent the eyelashes from irritating the eyes.

The aim is to roll out the affected lids to allow the puppy to develop its skull and the fat pad behind the eyes. In some puppies this will be sufficient when they are skeletally mature but some pups will go on to require entropion surgery. The eye tacks can be removed after several weeks in the conscious puppy.