Red Eye In Dogs - Symptoms, Causes, Diagnosis, Treatment, Recovery, Management, Cost

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Why Are My Dog's Eyes Red?Written By Alex OlssonPublished: 09/30/2015Updated: 04/02/2025Veterinary reviewed by Michele K.Why does my dog have red eyes?Red eyes in dogs can be concerning for pet parents. Whether it’s a minor irritation or a symptom of a more serious condition, knowing the possible causes and how to address them can bring peace of mind. Let’s explore why your dog’s eyes might be red, what you can do about it, and when it’s time to visit the vet.Youtube Play

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Symptoms of Red Eye in DogsIdentifying the symptoms of red eye in dogs is crucial for determining the severity of the issue and seeking timely care. Common symptoms include:

• Visible redness in one or both eyes
• Swelling around the eyes or eyelids
• Discharge (clear, yellow, green, or mucous-like)
• Squinting or excessive blinking
• Pawing or rubbing at the eyes
• Sensitivity to light
• Cloudiness or changes in the color of the eye
• Changes in vision, such as bumping into objects or disorientation

If you observe these symptoms, it’s important to monitor their progression and consult a veterinarian if the condition does not improve or worsens.Common Causes of Red Eyes in DogsRed eyes in dogs can occur for many reasons. Here are some common culprits:

• Allergies: Environmental allergens like pollen, dust, or mold can irritate your dog’s eyes, causing redness and itchiness. Food allergies may also contribute to inflammation, particularly in sensitive dogs.
• Pink Eye in Dogs (Conjunctivitis): Pink eye, or conjunctivitis, is a common cause of red eyes in dogs. It’s characterized by inflammation of the conjunctiva, the tissue lining the eyelids. Symptoms include redness, swelling, and discharge. Pink eye can result from infections, allergens, or irritants.
• Dog Eye Infections: Bacterial, viral, or fungal infections can lead to red, irritated eyes. Signs of infection often include yellow or green discharge, swelling, and discomfort.
• Injuries and Irritants: Scratches, foreign objects, or exposure to smoke and dust can cause redness. These irritants can lead to further complications if not addressed promptly.
• Glaucoma and Other Serious Conditions: Glaucoma, an increase in intraocular pressure, can cause redness and pain. Other conditions, such as corneal ulcers or autoimmune diseases, may also lead to red eyes. These require immediate veterinary attention.

Caring for your pet’s health doesn’t have to strain your budget. With a Wag! Wellness plan, you’ll get access to a 24/7 vet chat, annual booster shots and a yearly check-up. Diagnosis of Red Eye in DogsA veterinarian will conduct a thorough examination to determine the cause of your dog’s red eyes. Diagnostic steps may include:

1. Physical Examination: The vet will check for visible signs of injury, swelling, or discharge.
2. Ophthalmic Tests: Tests like the Schirmer tear test to assess tear production, fluorescein staining to detect corneal ulcers, or tonometry to measure intraocular pressure may be performed.
3. Medical History: Your vet will ask about your dog’s recent behavior, exposure to potential allergens or irritants, and any pre-existing medical conditions.
4. Laboratory Tests: In cases of infection or suspected systemic issues, samples of discharge may be analyzed, or blood tests may be conducted to identify underlying causes.

Treatment for Red Eye in DogsThe treatment for red eye depends on the underlying cause. Here are some common approaches:

• For Allergies: Antihistamines or corticosteroid eye drops may be prescribed to reduce inflammation and discomfort. Adjustments to the dog’s environment, such as minimizing exposure to allergens, are also important.
• For Pink Eye: Antibiotic or antiviral eye drops are often used to treat infections. Regular cleaning of the eyes with a vet-approved solution can help manage symptoms.
• For Infections: Topical or oral medications may be required to address bacterial, viral, or fungal infections. Consistent use of prescribed treatments is essential for full recovery.
• For Injuries: Protective measures like an Elizabethan collar may be recommended to prevent further damage. Severe injuries may require surgery or other specialized treatments.
• For Glaucoma: Glaucoma often necessitates long-term medication or surgical intervention to manage intraocular pressure and preserve vision.

In all cases, timely and consistent treatment is crucial to avoid complications and ensure a full recovery.On the look out for the right pet insurance policy for your pup? Check out Wag! Compare to browse top policies from leading providers across the country. 

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Recovery and Prevention of Red Eye in DogsThe recovery process depends on the severity and cause of the red eye. Mild cases often resolve within a few days with appropriate care, while more serious conditions may require longer treatment and follow-up visits.To prevent red eye in dogs:

• Regular Grooming: Keep the hair around your dog’s eyes trimmed to avoid irritation.
• Routine Cleaning: Use vet-approved eye cleaning solutions to remove debris and prevent infections.
• Protective Measures: Limit your dog’s exposure to environmental irritants like smoke, dust, and pollen.
• Health Check-ups: Regular veterinary visits can help identify and address potential issues early.

By staying attentive to your dog’s eye health and seeking prompt care when necessary, you can help them maintain bright, healthy eyes and overall well-being. For more support, consider Wag!’s 24/7 vet chat or wellness plans to ensure your dog gets the care they need when they need it most.Red Eye Questions and Advice from Veterinary ProfessionalsAmerican Bully10 months

40 found this helpful

40 found this helpful

My pet has the following symptoms:We noticed one of his eyes the pupil was very small and then it started to get back to normal and the following day it was the other eye. Symptoms went away and then we started noticed the white part of the eye is redish.June 17, 2021Answered by Dr. Linda S. MVB MRCVS40 RecommendationsThat eye is very bloodshot. Possible causes for his signs would include an infection, reaction to something in the environment (such as dust or pollen), a corneal ulcer etc. A vet visit is needed. They will examine his eyes and check his pupil responses. They may stain for any ulcers. Treatment will depend on what is going on and may include e.g antibiotic eye drops and anti inflammatories.June 17, 2021Was this question and answer helpful?

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bully7 months

54 found this helpful

54 found this helpful

My pet has the following symptoms:Clear Red In One Eye Visible In Certain LightsWhat can I do about itJan. 10, 2021Answered by Dr. Sara O. DVM54 RecommendationsHello, if there is blood in the eye causing this redness he needs to go to your vet right away. If the white part of the eye is red, this could be allergies. You can try allergy eye drop to help with this redness. Blood in the eye is never a good sign and needs immediate vet attention.Jan. 10, 2021Was this question and answer helpful?

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