Entropion in Dogs

Entropion is when a dog’s eyelids turn in toward the eyeball.

Entropion is an abnormal eyelid conformation that can occur in dogs. Dogs with entropion have eyelids that curve inward, causing their eyelashes to rub against their corneas.

The condition may affect one eye or both, and it may involve all or parts of the four eyelids.

Causes of Canine Entropion

Entropion is usually a genetic condition in dogs. In these cases, the entropion appears before a dog's first birthday.

Sometimes entropion can develop secondary to another condition. For example, damage to the eyelids or the nerves that control them may result in entropion in a dog that was not otherwise affected by it.

Dog Breeds Most Commonly Affected by Entropion

When entropion is inherited, it commonly affects dog breeds that are brachycephalic, with short noses and prominent eyes. It is also more common in giant breeds. Below are some of the dog breeds commonly affected by entropion:

Signs of Canine Entropion

It may not be obvious to you that your dog has entropion because of swelling, extra skin, or squinting of the eyes. If your dog exhibits any of the following signs, entropion may be the culprit, and you should make an appointment with your veterinarian right away to evaluate the problem.

Diagnosis of Entropion in Dogs

Your veterinarian will be able to diagnose your dog with entropion by carefully examining the affected eye(s). The doctor may place a drop of anesthetic on the eye(s) first, to alleviate pain so the eye exam is more comfortable for your dog.

The veterinarian will be able to see whether the eyelids or any portions of them curve abnormally inward. Fluorescein dye will also be applied to your dog's cornea(s) to evaluate whether rubbing eyelashes have caused a corneal ulcer.

Treatment of Canine Entropion

The treatment that is chosen for your dog's entropion will depend on its severity and the age of your dog. Without treatment, your dog will be in constant discomfort and may eventually become blind.

If the entropion is the primary problem, your veterinarian may use one or more of the following treatments:

If the entropion is found to be secondary to another problem, that will need to be treated right away.

Similarly, if the entropion has caused another problem, usually a corneal ulcer, that will need to be treated, as well.

Prevention of Entropion in Dogs

Dogs that have primary entropion (not caused by another condition such as trauma) should not be bred. Eliminating dogs with entropion from the breeding population is the only way to reduce the incidence of this inheritable condition.

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