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Proptosis (Prolapse of the Eyeball) in Dogs

Occurrence: rarer
Location of disease: Head/Neck

Author: Dr. med. vet. Gisa Löwe | Last modified: 17.02.2026

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Emergency see a veterinarian immediately

Definition

Proptosis, also known as prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse. of the eyeball, is a condition in which a dog’s eyeball protrudes from its normal position in the skull. This can lead to damage to the eye and surrounding tissue and often requires immediate veterinary care.

The most important facts at a glance

Proptosis is a serious condition in dogs in which the eyeball has prolapsed from the orbital cavityThe orbital cavity is a bony structure in the skull that surrounds the eye and its adnexa. It protects the eye and provides attachment points for the eye muscles.. Dogs with flat facial anatomyAnatomy is the scientific study of the structure of living things. It deals with the construction and organization of organisms, including their systems, organs, and tissues. such as Pugs or French Bulldogs are particularly at risk because their orbital cavities are less deep. The most common cause is physical traumaA trauma refers to a physical injury or damage caused by external force. Traumas can range from simple cuts to severe multiple injuries., such as from accidents or fights with other animals. Increased pressure in the head area, such as from tumors, can also triggerA trigger is a stimulus that elicits a specific reaction or state. In veterinary medicine, this can refer to emotional responses, such as fear or aggression, or medical conditions, such as seizures in dogs and cats. proptosis. Symptoms include a partially or completely protruded eyeball, bleeding, pain, and inability to close the eyelid, which can lead to corneal damage. DiagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. is made through a physical examination and can be supplemented by imaging procedures. Rapid treatment is crucial and includes repositioning the eyeball, often under anesthesiaAnesthesia refers to the state of insensitivity to pain and can be partial (local anesthesia) or for the entire body (general anesthesia). It is used to keep patients pain-free during surgical procedures., and temporarily closing the eyelids. Anti-inflammatory medications and antibiotics are used to support healing. In severe cases, removal of the eye may be necessary. Preventive measures include minimizing risks for physical injuries, such as securing the dog’s environment and regular veterinary examinations. Research focuses on improved surgical techniques and the identification of genetic markers to minimize the risk of proptosis.

Causes

A dog’s eyeball normally sits well protected in the bony orbital cavityThe orbital cavity is a bony structure in the skull that surrounds the eye and its adnexa. It protects the eye and provides attachment points for the eye muscles.. This structure provides protectionProtection refers to safeguarding against diseases or harm. In veterinary medicine, this can include protecting animals through vaccinations, the use of parasite control products, or providing a safe environment. from injury and keeps the eye in position. In dogs with short snouts, such as Pugs, Pekingese, or French Bulldogs, the orbital cavities are shallower, which increases the risk of proptosis.

One of the most common causes of proptosis in dogs is physical traumaA trauma refers to a physical injury or damage caused by external force. Traumas can range from simple cuts to severe multiple injuries.. This can be caused by a car accident, a fall, or even a scuffle with another animal. Since the orbital cavities in brachycephalic breeds are less deep, less force is required to displace the eyeball.

Another cause can be increased pressure in the head area, for example from tumors or a sudden, severe increase in blood pressure. In rare cases, proptosis can also occur due to severe allergic reactions or infections that lead to swelling and displacement of the eyeball.

Symptoms

Very common symptoms:

Common symptoms:

Globe Injury

The most obvious symptom of proptosis is the protrusion of the eyeball from the orbital cavityThe orbital cavity is a bony structure in the skull that surrounds the eye and its adnexa. It protects the eye and provides attachment points for the eye muscles.. This is often associated with swelling of the surrounding tissue and impairment of the eyelids, which may no longer be able to close the eye.

Dogs with proptosis may also show signs of pain, such as whining, rubbing the affected eye with their paw, or general restlessness. Bleeding or conjunctival hyperemiaHyperemia refers to an increased blood volume in a body area, often as a reaction to inflammation or as a result of improved blood circulation. It can lead to redness and a feeling of warmth in the affected area. may occur, and the eye itself may appear dry or damaged.

In the case of nerve damage, loss of vision may also occur. This can manifest as an altered response of the affected eye to light or a lack of pupillary response. In severe cases, the eye may completely lose its function.

Diagnosis

The diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. of proptosis is usually made through a physical examination by a veterinarian. The obvious prolapse of the eyeball is usually enough to make the suspected diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients.. The veterinarian will also assess the severity of the injury, including possible damage to the cornea and surrounding tissue.

For further evaluation, the veterinarian may use special instruments to measure intraocular pressure and check the condition of the retinaThe retina is the light-sensitive layer at the back of the eye that captures visual information and transmits it to the brain via the optic nerve. Retinal diseases can lead to vision loss in dogs and cats.. These examinations help determine the extent of the damage and plan the best course of action for treatment.

In some cases, imaging procedures such as X-rays or ultrasoundUltrasound refers to sound waves that are above the hearing threshold of the human ear. In medicine, ultrasound is used for diagnostic imaging procedures to visualize internal organs, tissues, and blood flow. examination may be necessary to rule out other injuries or underlying causes such as tumors.

Therapy

Treatment of proptosis should be carried out as quickly as possible to maximize the chances of successful restoration of the eye and its function. The first measure often consists of carefully repositioning the eyeball back into the orbital cavityThe orbital cavity is a bony structure in the skull that surrounds the eye and its adnexa. It protects the eye and provides attachment points for the eye muscles.. This is usually done under anesthesiaAnesthesia refers to the state of insensitivity to pain and can be partial (local anesthesia) or for the entire body (general anesthesia). It is used to keep patients pain-free during surgical procedures. to avoid pain and allow the veterinarian to work precisely.

After the eye has been repositioned, it may be necessary to temporarily close the eyelids (tarsorrhaphy) to protect the eye and support healing. In addition, anti-inflammatory medications and antibiotics can be administered to reduce swelling and prevent infections.

Treatment may also include the application of eye ointments or drops to keep the eye moist and support healing of the cornea. In severe cases where the eye cannot be saved, surgical removal of the eye may be necessary.

Prognosis and follow-up care

The prognosis for dogs with proptosis depends on the severity of the injury and the speed of treatment. With timely and appropriate treatment, many dogs can partially or fully regain their vision, especially if the optic nerveThe optic nerve is the nerve that connects the retina of the eye to the brain and transmits visual information. Diseases or damage to the optic nerve in dogs and cats can lead to vision loss or blindness. has not been damaged.

However, there is always a risk of permanent damage, including blindness or loss of the eye, especially in severe cases or when treatment is delayed. Even with successful treatment, scar tissue formation or other permanent changes to the eye may remain.

Long-term follow-up care and regular veterinary monitoring are important to ensure the health of the eye and prevent complications. In some cases, permanent medication or special care may be required.

Prevention

The preventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. of proptosis begins with minimizing the risk of physical traumas. This can be achieved by ensuring secure environments, such as fenced gardens and the use of seat belts when driving. Avoiding situations that could encourage aggressive confrontations with other animals is also important.

Special caution is required for dogs at increased risk, such as brachycephalic breeds. Regular veterinary examinations can help identify and address potential risk factors early. In some cases, it may be advisable to consider preventive measures such as wearing protective goggles during certain activities.

A healthy diet and regular exercise can also help improve the dog’s overall health and reduce the risk of diseases that could lead to proptosis. It is important to address the needs and characteristics of each breed to ensure the best possible preventive measures.

Outlook on current research

Proptosis, or prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse. of the eyeball, is a serious condition in dogs that requires immediate veterinary care. This condition occurs frequently in dogs with a flat facial anatomy, such as Pugs or Bulldogs, because their orbital cavities are shallower and wider, leading to a higher risk. Current research focuses on various aspects of proptosis, including improved surgical techniques for restoring normal eye position, preventive measures, and the long-term effects on eye function.

A significant area of research is the development of more advanced surgical methods that improve healing and reduce recovery time. Researchers are currently investigating new materials for surgical procedures that enable less invasiveInvasive describes medical procedures or pathogens that enter the body or penetrate tissue. In medicine, invasive procedures can range from minimally invasive techniques to open surgery. techniques and reduce the risk of complications. In addition, work is being done on optimizing postoperativePostoperative refers to the time after a surgical operation. This phase includes recovery and the management of possible complications after the procedure. management to increase the success rate of procedures and improve the quality of life of affected dogs.

Another branch of research deals with geneticsGenetics is the science of genes, heredity, and the variation of organisms. It studies how genetic information is passed from generation to generation and how it influences the development, appearance, and behavior of living things. and preventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring.. Scientists are trying to identify genetic markers that could make dogs more susceptible to proptosis. By identifying these markers, targeted breeding could be carried out in the future to minimize the risk of proptosis. In addition, research is being conducted on how regular eye examinations and educating pet owners can help recognize symptoms early and act quickly to reduce the severity of the disease.

The long-term consequences of proptosis are also the subject of intensive studies. Researchers are analyzing the effects on vision and overall eye health after treatment. Research is being conducted on which factors contribute to complete or partial loss of vision and how these can be avoided. Novel approaches in rehabilitation and care after surgery could help further improve the visual function and quality of life of dogs with proptosis in the future.

In addition, the role of the environment and other external factors is being investigated. Researchers are analyzing how traumas from accidents or fights can increase the risk of proptosis and what measures can be taken to prevent such incidents. These studies could lead to new guidelines for animal husbandry and care that minimize the risk of eye prolapseProlapse refers to the falling out or protrusion of an organ or part of it from its normal position, often through an opening. In animals, this can include, for example, a rectal mucosal prolapse or a vaginal prolapse..

Research on proptosis in dogs is dynamic and aims to deepen the understanding of this condition and improve treatment options. The insights gained could benefit not only dogs but also other pets with similar anatomical features, which underscores the importance of this research.

Frequently asked questions (FAQs)

What is Proptosis in Dogs?

Proptosis is the prolapse or protrusion of the eyeball from the orbital cavity. It is a serious medical problem that frequently occurs in dog breeds with flat faces and requires immediate veterinary treatment. -

What causes Proptosis?

Proptosis can be caused by trauma, such as a blow to the head or a fight. Certain breeds are more susceptible due to their anatomy, and in rare cases, diseases or tumors can also be the trigger. -

How is Proptosis diagnosed in dogs?

Diagnosis is usually made through a physical examination by a veterinarian. The prolapse of the eyeball is often obvious, and the veterinarian will carefully examine the condition of the eye and surrounding structures. -

How is Proptosis treated?

Treatment usually requires surgical intervention to return the eyeball to the orbital cavity. Depending on the severity, this can range from simple repositioning to more complex procedures. Postoperative care is crucial for the success of treatment. -

Can dogs see normally again after Proptosis?

This depends on the severity of the proptosis and the damage sustained. Some dogs can fully regain their vision, while others may have permanent visual disturbances, especially if the optic nerve or blood supply to the eye has been compromised. -

Which breeds are most affected by Proptosis?

Dogs with flat faces, such as Pugs, Bulldogs, and Shih Tzus, are at greatest risk due to their anatomical features. The shallow orbital cavities and protruding eyes of these breeds make them more susceptible to proptosis. -

Are there ways to prevent Proptosis in dogs?

While there is no guaranteed method to prevent proptosis, pet owners can minimize the risk through careful handling and avoiding situations that could lead to head injuries. Regular veterinary examinations are also important to detect early signs of eye diseases. -

How quickly should a dog with Proptosis be treated?

Proptosis is an emergency that requires immediate veterinary help. Rapid intervention can reduce the risk of complications and increase the chances of complete recovery. -

What are the long-term effects of Proptosis on dogs?

Long-term effects can include visual disturbances, chronic eye inflammation, or even loss of the eye if proptosis is not treated promptly. Quality of life can be significantly impaired if permanent eye damage occurs. -

Is Proptosis painful in dogs?

Yes, proptosis is often associated with pain. The prolapse of the eyeball can lead to significant discomfort, and rapid medical intervention is necessary to relieve pain and prevent further damage.