Can Dogs Get Pink Eye? Understanding Conjunctivitis in Dogs

Just like humans, dogs can develop pink eye, medically known as conjunctivitis. This common eye condition can make your pet’s eyes swollen, red, and uncomfortable. Learning how to recognize, treat, and prevent pink eye in dogs is essential for every responsible pet owner. In this guide, we explore everything you need to know about canine conjunctivitis, from causes and symptoms to treatment options and preventive strategies.

What Is Conjunctivitis in Dogs?

Conjunctivitis refers to inflammation of the conjunctiva — the thin, transparent membrane lining the inner eyelid and covering the white of the eye. This membrane acts as a barrier against dirt, bacteria, and foreign material. When the conjunctiva becomes inflamed, your dog may develop the symptoms commonly referred to as pink eye.

Why Is the Conjunctiva Important?

• Protects the eye from external irritants and pathogens
• Supports tear film distribution, which lubricates and nourishes the eyeball
• Acts as a first line of immune defense

Prompt veterinary attention is recommended if you notice any symptoms, as certain causes can progress rapidly and potentially threaten your dog’s eyesight.

What Causes Pink Eye in Dogs?

The reasons behind canine conjunctivitis vary and may include:

• Bacterial Infections: Species like Staphylococcus and Streptococcus are common offenders, often causing green or yellow discharge. These types are highly contagious among pets.
• Viral Infections: Canine distemper and other viral agents may lead to conjunctivitis, often spreading quickly and potentially associated with respiratory symptoms.
• Allergens: Exposure to dust, pollen, mold, perfumes, smoke, and even medications can trigger allergic conjunctivitis.
• Environmental Irritants: Foreign bodies (such as grit or grass), environmental pollutants, and physical injuries can prompt inflammatory responses.
• Underlying Eye Abnormalities: Conditions like glaucoma, eyelash or eyelid disorders, or ocular tumors may cause secondary conjunctivitis.
• Chronic Health Conditions: Problems such as dry eye (KCS) and autoimmune disorders can be associated with persistent conjunctivitis.

Can Dogs Catch Pink Eye From Humans or Other Pets?

Some forms of conjunctivitis, especially those caused by bacteria and viruses, can be contagious between dogs, and potentially from other animals. However, zoonotic transmission (human to dog or vice versa) is rare but possible in certain cases. Always wash your hands thoroughly after handling a pet with eye problems.

Symptoms of Conjunctivitis in Dogs

Unlike humans, where glaring redness makes pink eye obvious, a dog’s symptoms can be subtler—especially in breeds with long hair obscuring the eyes. Watch for these signs:

• Redness of the eye or inner eyelid
• Eye discharge (can be clear, white, yellow, or green)
• Watery eyes sometimes with excessive tearing
• Sensitivity to light or squinting
• Swollen eyelids
• Frequent blinking or inability to open the eye fully
• Rubbing face on ground, furniture, or with paws
• Matted fur around the eyes
• In severe cases: crusting, pain, lethargy, loss of appetite

Secondary Symptoms

• Runny nose (may indicate a viral cause)
• Sneezing or coughing
• Itching or hair loss around the eyes

Types of Conjunctivitis in Dogs

How Is Dog Conjunctivitis Diagnosed?

If you suspect your dog has pink eye, a visit to your veterinarian is essential for accurate diagnosis and prompt care. Diagnosis may involve:

• Comprehensive eye examination with special dyes or stains to check for corneal ulcers or scratches
• Schirmer tear test to detect dry eye (KCS)
• Measuring intraocular pressure for glaucoma risk
• Swabbing discharge for bacterial culture or cytological analysis (to identify pathogens or abnormal cells)
• Allergy and general health assessment to rule out systemic causes

Your vet may also examine the eyelids, tear ducts, and surrounding tissues to check for anatomical abnormalities or injuries.

Treatment Options for Conjunctivitis in Dogs

Treatment is based on the underlying cause uncovered during the vet’s assessment. It is important never to use human eye drops or medications without veterinary guidance, as improper medication can worsen the problem.

Common Treatments

• Topical antibiotic ointments or drops for bacterial causes
• Antiviral medications for confirmed viral cases (rarely used outside severe viral infections)
• Anti-inflammatory eye drops or corticosteroids for allergy-related inflammation
• Saline eye washes to clear debris and soothe irritation
• E-collars (Elizabethan collars) to prevent rubbing and self-injury
• Oral medications in severe or chronic cases, or when associated with systemic conditions
• Treatment of underlying disease (such as eye surgery for anatomical defects, treatment for dry eye, etc.)

In many cases, your veterinarian will demonstrate the proper way to apply medicated drops or ointment at home. Be prepared to follow their instructions carefully, and contact the clinic if you notice any worsening signs.

Home Management and Supportive Care

• Use only prescribed treatments and follow your vet’s instructions
• Keep the eye area clean; gently wipe away discharge with a clean, damp cotton pad (one per eye)
• Prevent your dog from rubbing or scratching their eyes by using an e-collar as recommended
• Isolate affected dogs from other pets until the cause is known, especially if a bacterial or viral infection is suspected
• Wash your hands before and after caring for your dog’s eyes

When Is Canine Pink Eye an Emergency?

Always seek immediate veterinary attention if:

• Your dog cannot open their eye at all
• There is severe pain (pawing at eye continuously or vocalizing in pain)
• The eye or surrounding tissue swells rapidly
• You notice a change in eye color, especially a blue or yellow tint on the surface
• Vision appears impaired (bumping into objects, hesitant movements)
• General health sharply declines (fever, lethargy, loss of appetite)

Preventing Conjunctivitis in Dogs

While not every case of pink eye can be prevented, you can reduce your dog’s risk with these steps:

• Keep your dog’s face and eyes clean, especially after outdoor activities
• Limit your dog’s exposure to dusty or smoky environments
• Avoid letting your dog ride with his head out the car window
• Schedule regular veterinary checkups for early detection of underlying eye problems
• Clean your dog’s bedding and toys regularly
• Treat allergies and chronic health conditions as instructed by your veterinarian
• Isolate sick animals within your home until their illness has been diagnosed and treated

Breed Considerations

Some breeds, particularly those with prominent or protruding eyes (such as Pugs, Bulldogs, Shih Tzus, and Cocker Spaniels) are more prone to eye injuries and chronic conjunctival problems. Owners of these breeds should pay extra attention to eye hygiene and prompt treatment of any symptoms.

Frequently Asked Questions (FAQs)

Q: Can I use human eye drops for my dog’s pink eye?

A: No. Many over-the-counter human eye medications are unsafe or simply not effective for dogs. Always consult your veterinarian for appropriate medication.

Q: Is canine conjunctivitis painful for my dog?

A: Yes, conjunctivitis can cause burning, itching, or pain. Quick veterinary treatment can ease your pet’s discomfort and speed healing.

Q: Can my dog give pink eye to me or other people?

A: This is rare, but possible in certain cases. Some bacterial forms of conjunctivitis can be transmitted between pets and, rarely, from pets to people. Excellent hygiene while treating your dog is always recommended.

Q: Should I keep my dog home from daycare or parks if they have conjunctivitis?

A: Yes. Until your veterinarian has determined the cause and your dog is cleared to return, keep your dog isolated to prevent potentially contagious spread.

Q: How long does it take for conjunctivitis in dogs to resolve?

A: With proper veterinary treatment, most dogs’ conjunctivitis improves within days, but some cases (especially viral or chronic forms) may persist longer and require extended care. Always complete the full course of prescribed medication.

Summary

Pink eye in dogs can range from mildly irritating to sight-threatening. Recognizing the signs, understanding potential causes, and seeking prompt veterinary care are key to restoring your pet’s eye health and comfort. By staying proactive about eye hygiene and responding quickly to symptoms, you help ensure happy, healthy eyes for your canine companion.

Author

Srija Burman

 

Srija holds an MA in English Literature from the University of Calcutta and a PG diploma in Editing and Publishing from Jadavpur University. Her interest in writing and editing ranges across niches, including academics, sports, and human psychology.

Read full bio of Srija Burman