Dogs are natural explorers and adventurers. But for some, the sunny trails and open skies that make life exciting can pose a serious risk to their eyes. Pannus is an eye condition that can affect your dog’s comfort, vision, and ability to do what they love.
The good news? With early detection, consistent treatment, and proactive eye protection like Rex Specs, Pannus doesn't have to stand in the way of adventure. Our mission is simple: keep dogs protected and ready to take on the world, from backcountry hikes, days on the job, or games of fetch at the park. Here’s what you need to know.
What Is Pannus?
Pannus, also known as Chronic Superficial Keratitis (CSK), is an immune-mediated condition that affects the cornea, or clear part of the eye. If left untreated, it can badly scar the eye and cause serious vision impairment, or even blindness.
While some breeds may be more prone to developing Pannus, like German Shepherds, Border Collies, Greyhounds, and Siberian Huskies, it can be found in any breed.
What Causes Pannus?
Veterinarians and scientists alike agree that Pannus may be caused by a combination of genetic predisposition and environmental triggers. One of the biggest culprits? Ultraviolet (UV) light.
Dogs who live at higher elevations or spend extended time outdoors are especially at risk due to the increase in UV exposure.
What Are the Signs of Pannus?
Early detection is critical. Keep an eye out for these common symptoms:
- Red, inflamed eyes
- Grayish-pink film or haze developing over the cornea
- Pigmentation changes in the eye
- Vision impairment over time
If you see these symptoms in your dog, consult their veterinarian. Routine vet checkups can catch these signs early, allowing treatment to start before permanent damage sets in.
Is There A Cure for Pannus?
Unfortunately, there’s no known cure for pannus. The good news is, it’s manageable with the right care.
Pannus is a chronic condition, meaning it requires lifelong management and monitoring. Left untreated, it can lead to significant vision loss, but with a proactive approach, most dogs continue to live full, happy, adventure-filled lives.
How Is Pannus Treated?
Veterinary treatment typically includes:
- Topical corticosteroids or immunosuppressive eye drops to control inflammation
- Minimizing UV exposure, especially during peak UV hours
- In rare, severe cases, surgical intervention may be considered
Following your vet’s treatment plan with consistency is crucial. Daily medications and routine vet visits help keep Pannus under control.
How Can I Help Prevent or Manage Pannus?
While you can’t prevent the underlying condition, you can reduce your dog’s risk of flare-ups and slow progression. Here are some helpful tips:
- Use UV400 rated eye protection, like Rex Specs, to block harmful UV rays
- Lessen time spent outdoors during peak UV times (typically 10AM-3PM)
- Choose shaded trails or lower elevation adventures when possible
- Stick to a vet recommended routine with medications and checkups
Small steps like these can make a major difference in your dog’s long-term eye health.
UV Exposure and Your Dog’s Eyes: What You Need to Know
UV rays are not only damaging to the skin, they can also harm sensitive eye tissue. Dogs exploring at high elevations, romping in the sun on desert hikes, or those who spend lots of time outdoors can be at an increased risk of UV damage.
Imagine a German Shepherd tearing up trails in the midday sun, or a Border Collie diving into alpine lakes in the high Rockies; without eye protection, their corneas are vulnerable to long term damage. That’s where UV-blocking gear comes in.
Rex Specs: A Simple Tool for a Serious Condition
Rex Specs dog goggles are more than a cool accessory - they’re a functional piece of gear designed to protect against UV light, dust, debris, and more.
For dogs with pannus, Rex Specs can be a game-changer. They provide a comfortable, durable barrier against the very thing that exacerbates the condition: the sun. Every lens Rex Specs offers is UV400 rated, protecting from 99.9% of UVA and UVB rays.
“My German Shepherd, Kuro, was diagnosed with Pannus this April. We moved to Colorado in 2023 and her eyes started to get slightly red and irritated in November 2024, then gradually got worse. She has to have steroid eye drops for the rest of her life. The Doctor recommended Rex Specs to protect her eyes from the UV Rays and we wear them anytime outside during the day now. Since wearing them outside during the day, her eyes are now white and clear.” - Alyssa Doggett
Keep Your Pup Adventuring Safely
Pannus might be a lifelong condition, but it doesn’t have to limit your dog’s life. With early diagnosis, proper treatment, and tools like Rex Specs, your dog can continue doing what they love most: living life outdoors, by your side.
Don’t wait for signs to show up. Stay informed, stay prepared, and help your dog keep their eyes on the next great adventure.