Eyelid Entropion in Dogs
What is entropion?
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 (outer part of the eyeball) resulting in pain, corneal ulcers or corneal erosions. This corneal damage can also result in corneal scarring, that can interfere with vision.
"Most pets will squint, hold the eye shut and tear excessively (epiphora)."
Most pets will squint, hold the eye shut and tear excessively (epiphora). Interestingly, many flat-faced pets 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.
How is entropion treated?
"The treatment for entropion is surgical correction."
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 pets will not undergo surgery until they have reached their adult size at six to twelve months of age.
What is the prognosis for entropion?
"The prognosis for the surgical correction of entropion is generally good."
The prognosis for the surgical correction of entropion is generally good. While several surgeries may be required, most pets 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.
© Copyright 2025 LifeLearn Inc. Used and/or modified with permission under license. This content written by LifeLearn Animal Health (LifeLearn Inc.) is licensed to this practice for the personal use of our clients. Any copying, printing or further distribution is prohibited without the express written consent of LifeLearn. This content does not contain all available information for any referenced medications and has not been reviewed by the FDA Center for Veterinary Medicine, or Health Canada Veterinary Drugs Directorate. This content may help answer commonly asked questions, but is not a substitute for medical advice, or a proper consultation and/or clinical examination of your pet by a veterinarian. Please contact your veterinarian if you have any questions or concerns about your pet’s health. Last updated on Apr 18, 2012.