TL;DR: A bulging eye, or proptosis, is a critical medical emergency that requires immediate veterinary care to prevent permanent blindness and manage severe pain. Sharing a photo with your vet can help them prepare for urgent surgical intervention before you arrive.
What is proptosis and why is my cat's eye bulging?
A bulging eye, medically known as proptosis or exophthalmos, occurs when the eyeball is displaced forward from the socket. This condition is often caused by blunt-force trauma, such as a fall, a vehicle accident, or a physical altercation with another animal. In some cases, it may be caused by abscesses or tumors behind the eye pushing the globe forward.
Is a bulging eye in a cat considered a medical emergency?
Yes. This is a high-level medical emergency. If your cat’s eye is bulging, you must contact an emergency veterinarian immediately.
- Displacement can lead to optic nerve damage and permanent blindness.
- The eye tissue may die due to a lack of blood flow.
- The condition is extremely painful and requires professional intervention to manage pain and potentially save the eye.
How can sending a photo help the veterinarian triage my cat?
Providing a clear photo of the affected eye to your veterinary team can be life-saving for the organ. A photo helps the medical team in the following ways:
- The veterinarian can assess the severity of the displacement and identify if the eyelid is trapped behind the globe.
- The team can check for signs of rupture before you arrive.
- Visual information allows the clinic to prepare specialists and surgical tools so they are ready the moment you walk through the door.
Clinical Context (Merck Veterinary Manual)
Traumatic proptosis in cats usually results from severe head trauma, often accompanied by facial fractures. During trauma, the globe is luxated from the orbit, and eyelid spasms prevent its retraction. Secondary orbital hemorrhage and swelling displace the globe further. Corneoconjunctival drying and malacia follow. The globe should be replaced as soon as possible if the animal's physical condition permits general anesthesia. Treatment consists of systemic antibiotics and, occasionally, corticosteroids, combined with topical antibiotics and mydriatics. The prognosis for retention of vision is guarded, and return of vision is rare in cats, although the globe is usually saved. Providing moisture to lubricate the exposed corneoconjunctiva is also important.
Chapter: Ophthalmology, Emergency
Source: The Merck Veterinary Manual, 11th Edition (Page 1696)