What Is Proptosis?
Proptosis is a sudden forward displacement of the eyeball out of the eye socket, with the eyelids often trapped behind the eye so it cannot slip back in. It is a true emergency. The longer the eye stays out, the greater the damage to the cornea, the optic nerve and the blood supply.
It is most common in flat-faced (brachycephalic) dogs, whose shallow eye sockets and prominent eyes mean even mild pressure or a minor knock can pop an eye forward. In long-nosed dogs and cats, proptosis usually takes serious trauma such as a car accident or a dog bite.
First aid on the way to the vet
Do not try to push the eye back in. Cover it with a clean cloth soaked in saline or contact lens solution (or clean water if nothing else is available) to keep it moist, stop your pet from pawing at it, and go straight to an emergency vet.
Common Causes and Risk Factors
- Breed: Shih Tzus, Pugs, Pekingese, Boston Terriers, Lhasa Apsos and other brachycephalic breeds are at highest risk.
- Restraint or pressure: firm scruffing, tight holds during grooming, or pulling hard on a neck collar.
- Trauma: dog fights, falls, car accidents or blows to the head.
- Underlying eye disease: an enlarged eye from glaucoma or a mass behind the eye can make proptosis easier.
Signs Owners Notice
- An eye that bulges forward, with the lids tucked behind it
- Redness, bleeding or a dry, dull surface on the eye
- A pupil that looks very large or does not react to light
- Pain, pawing at the face, or squinting
- The eye pointing in an odd direction because eye muscles are torn
A sudden bulging eye can also be caused by an abscess or swelling behind the eye. See dog swollen eye for other causes, but treat any bulging eye as urgent.
Diagnosis
The vet assesses the eye under sedation or anesthesia: whether the eyeball is intact, whether the pupil responds to light, how many eye muscles are torn and whether there is bleeding inside the eye. Fluorescein stain checks for corneal damage, and skull X-rays or other imaging may be needed after major trauma.
Treatment and Outlook
- Replacement surgery: under anesthesia, the vet repositions the eye and sews the eyelids partly closed (temporary tarsorrhaphy) for about two to three weeks while swelling settles.
- Medication: antibiotics, anti-inflammatories and pain relief, plus an e-collar to prevent rubbing.
- Enucleation: if the eye is ruptured, badly damaged or the optic nerve is torn, removing the eye is the kindest option. Pets adjust very well to life with one eye.
Brachycephalic dogs whose eye popped out after minor force have the best chance of keeping the eye, and some keep vision. Even when vision is lost, the eye can often be saved for comfort and appearance. Long-term issues can include dry eye, a permanent outward squint or corneal ulcers.
Practical Tips for US Pet Owners
- Walk flat-faced breeds on a harness rather than a neck collar.
- Avoid scruffing or tight neck holds; ask groomers to handle brachycephalic dogs gently around the head.
- Know where your nearest 24-hour emergency vet is before you need it, using veterinary clinic listings.
- Keep saline and a clean cloth in your pet first aid kit.
When to see a vet
Always immediately. Proptosis is an emergency and the outcome depends on how quickly the eye is treated, ideally within an hour or two. Do not wait to see whether it goes back on its own.
Key Takeaways
- Proptosis is an eyeball pushed forward out of its socket.
- Flat-faced dogs can suffer it from minor pressure or trauma.
- Keep the eye moist, do not push it back, and get to an emergency vet fast.
- Prompt surgery often saves the eye, though vision is not guaranteed.
FAQ
Can a proptosed eye go back in by itself?
Rarely, and you should never wait to find out. Swelling behind the eye quickly traps it in place and cuts off blood supply.
Can cats get proptosis?
Yes, but usually only after serious trauma because cats have deeper eye sockets. The outlook for vision is generally poorer than in flat-faced dogs.
Will my dog be in pain after eye removal?
Pain is controlled with medication, and most dogs are more comfortable after removal of a badly damaged eye than before.