What is an Eye Infection in Dogs?
What is it?
How is it Treated?
Breed Predispositions
Shih Tzus Lhasa Apsos Pekingese Bulldogs Cocker Spaniels Boston Terriers Boxers Chihuahuas
Introduction
Lucy adored her spunky Shih Tzu, Muffin, who had been her loyal friend for the past four years. One morning, as they cuddled on the couch, Lucy noticed that Muffin’s eyes seemed red and swollen. Upon closer inspection, she saw a thick discharge around the corners of her eyes, causing her little friend obvious discomfort. Worried about Muffin’s wellbeing, Lucy took her to the veterinarian, who diagnosed her with an eye infection.
Eye infection in dogs is an eye inflammation caused by bacteria, viruses, fungi or parasites. It can be severe and cause various symptoms such as pain, redness, swelling, discharge from the eye(s), squinting or sensitivity to light. Eye infections are often felt more acutely in one eye only as the other may not have been affected or already be healing.
Infections can lead to permanent damage if not treated quickly. To aid proper diagnosis and treatment, your vet will carefully examine your pup’s eyes under a microscope and test any discharge for bacteria or fungi. Treatment will depend on what kind of infection is present; antibiotics may be prescribed in cases of bacterial infection, but other types may require antiviral medication or even surgery.
If you suspect an eye infection, you must immediately take your dog to a vet to ensure they recover properly and avoid further health complications. Additionally, try to avoid subjecting their eyes to bright lights, dust particles or smoke, as these can all irritate the infected area and delay recovery.
Common Types of Eye Infections in Dogs
Conjunctivitis is caused mainly by bacteria, viruses, or allergens. There are different types of eye infections in conjunctivitis:
- Bacterial conjunctivitis is characterized by redness and swelling around one eye. This type of infection is most commonly seen in dogs.
- Viral conjunctivitis occurs when there is irritation of the mucous membranes lining the inside surface of the eyelids. Symptoms include tearing, discharge from the eye, and crusting over the eyes.
- Allergic conjunctivitis is triggered by exposure to pollen or dust mites. A dog is showing signs of an eye infection, including itching, watery eyes, excessive lacrimation, and inflammation of the eyelid margins.
Pinkeye is usually due to viral infections in dogs and can range from adult and young. However, it can also be caused by bacterial infections. If you notice pink eye symptoms in your dog, contact your veterinarian immediately.
Uveitis is often associated with autoimmune diseases such as diabetes or cancer. The cause of uveitis is unknown, but an infection, a genetic mutation, or a vaccine reaction may cause it. Uveitis can lead to vision loss and permanent eye damage if not treated promptly.
Nasolacrimal duct obstruction is a medical condition in which the tear duct, a membranous tube that carries tears from the eyes to the nose, becomes blocked. This can cause irritation and inflammation of the conjunctiva (the thin layer of skin covering the eyeballs) and, in extreme cases, may lead to blindness.
Glaucoma is another condition that affects the eyes. It’s not contagious but can lead to blindness if left untreated. It is estimated that 40% of dogs will be left blind in the eye, which is affected by glaucoma.
Causes of Dog Eye Infections
The cause of your dog’s eye infections for many reasons. Some breeds are prone to certain eye infections, while others are not. Some common causes include allergies, fleas, ear mites, parasites, and bacterial infections. Other factors include diet, environment, grooming habits, and genetics.
Bacteria can infect the eye by entering through cuts, scrapes, or abrasions; getting under the skin around the eye; or coming into contact with foreign objects such as dirt, plants, or fur.
Dry eye syndrome is another possible cause of eye infections. The eye’s surface becomes dry when the tear glands don’t produce enough tears. This makes it easier for bacteria to grow. It may be hereditary or acquired. The condition affects both cats and dogs.

Eye infection that could cause lid tumors. Tumors of the lids (tumors of the eyelids), sometimes called “lid tumors,” occur when cells form a growth of abnormality on the eyelid. These tumors can block drainage channels and prevent the proper flow of fluids within the eye. In some cases, they can even develop into cancerous lesions.
Symptoms of Dog Eye Infections
Signs of conjunctivitis may vary depending on what causes the problem. The first sign is usually a behavior change. For example, your pet might experience eye sensitivity, pawing at their eyes more than usual, rubbing their face on furniture or other objects, or licking their nose excessively. He could also have trouble seeing well.
Other common signs and symptoms of an eye infection in dogs include:
- Redness
- Swelling around the eye
- Sensitivity to light
- Discharge – it varies with the type of eye infection.
- Clear discharge is usually the cause of viral infections or allergies
- Mucoid To mucopurulent (cloudy or yellowish) discharge could be due to dry eye disease
- Purulent Or Thick Yellowish” is “n “pus” could be a bacterial infection
Call the vet immediately if your dog is experiencing any of these symptoms.
Diagnosis of Eye Infections in Dogs
Veterinary ophthalmologists use three main methods to diagnose eye infections in dogs: visual examination, Schirmer tear tests, and slit lamp examinations. A veterinarian looks at dog’s dog’s pupils, examines the cornea, and checks the iris, lens, and retina. The vet may also look at the optic nerve and examine the conjunctiva.
Visual Examination
A veterinary ophthalmologist uses a light source to illuminate the eye to conduct a thorough eye exam to determine the infection. This allows them to see the shape and color of the eye and choose whether there is swelling, redness, discharge, or pain. If necessary, the doctor may perform dilated fundoscopy, where they shine a flashlight directly onto the eye and views it through a microscope.
Schirmer Tear Test
The Schirmer tear test measures how much fluid the lacrimal glands produce. These glands produce tears to keep the surface of the eye moist. Tears flow from the bottom of your pup’s eye when it blinks. An ophthalmologist places a drop of the sterile saline solution under one eyelid and asks you to blink several times. Then, they take a reading every 30 seconds for 5 minutes.
Slit Lamp Examination
An ophthalmologist uses special instruments called slit lamps to view the inside of the eye. Slit lamps allow the doctor to magnify the examined area, allowing them to see things like blood vessels and nerves.

Treatment of Conjunctivitis in Dogs
Dogs with eye infections need immediate treatment plans. The sooner you treat them, the better the outcome.
Most are treated with drops and ointments. If these medications don’t work, they may require surgery. Treatment dog’s a dog’s eye irritation includes the following:
Eyedrops
There are many different types of eyedrops available. Some work better than others, depending on the type of infection.
The most common type of eyedrop used to treat eye infections is fluorescein. Fluorescein is a dye that stains the eyeball’s cornea (the front surface) red when applied topically. This allows doctors to examine the inside of the eyes for signs of inflammation or infection.
If your dog develops a severe eye infection, your veterinarian may recommend administering antibiotic drops directly into the infected eye. These drops contain antibiotics that kill bacteria and viruses.
When prescribing antibiotic drops, use only those approved for veterinary use. In addition, the manufacturer should list the ingredients on the label.
Ointments
Another option is gentian violet ointment. Gentian violet works well against bacterial conjunctivitis but not viral conjunctivitis.
Another option is Neosporin Ophthalmic Solution. This product is made specifically for treating eye infections in dogs. It’s available over the counter at veterinary clinics and drugstores.
Neosporin Ophthalmic Solution contains neomycin sulfate, polymyxin B sulfates, bacitracin zinc, and hydrocortisone. These active ingredients help prevent infection and reduce inflammation.
Oral Medications
Some oral medications can also be effective in treating eye infections. For example, oral antibiotics such as amoxicillin, enrofloxacin, and marbofloxacin effectively treat canine conjunctivitis caused by gram-negative organisms.
Surgery
If your dog suffers from an eye infection, he may need surgery to remove foreign bodies (such as dirt) from his eyes. This procedure is called enucleation.
Enucleation is usually performed at a veterinary hospital. Your vet should be able to recommend a reputable facility near you.
After surgery, your veterinarian will prescribe antibiotics to prevent infection. In addition, he’ll monitor your dog closely after surgery to ensure there are no complications.
Once your dog recovers from she’ll, he’ll need plenty of rest and quiet time. In addition, he may experience some temporary eye discomfort during recovery. However, most pets recover quickly and resume normal activities within a week.
How to Apply Eye Medications
There are several steps to follow when applying eye medicine to dogs. This guide will teach you how to correctly administer eye drops to your dog.
- Make Sure the Dog Has an Open Airway
Before administering any eye drop solution, ensure the dog has an open airway. If the dog is breathing rapidly, it may choke on the liquid.
Hold the dog firmly and tilt their head back slightly. Gently insert one finger between your dog’s lips and nose. Check whether the tongue is protruding. If yes, gently pull it forward.
Make sure those dogs’ nostrils are clear. If the dog has a runny nose, hold its muzzle closed with one hand. On the other hand, place a cotton ball inside your dog’s nostril and blow gently. Repeat until the nasal passages are cleared.
- Cleanse the Eyes
After ensuring the dog has an open airway, wash the eyes thoroughly. Use warm water and soap. Rinse the eyes twice. Do not use alcohol-based solutions.
- Apply Drops
Apply the prescribed amount to each eye. Wait 10 minutes after application.
Do not touch the dropper tip with your fingers. Instead, place the information directly onto the surface of the eye. Avoid touching the eye itself. Wait another 10 minutes before removing the dropper.
- Monitor Results
Monitor the results closely. If the symptoms worsen, consult your veterinarian immediately.
Preventing Eye Problems in Dogs
Prevention is better than cure. So here are some tips to help prevent common dog eye diseases.
- Keep your dog away from water sources where dead animals are floating around. This includes ponds, lakes, rivers, streams, etc.
- Make sure your dog doesn’t lick his paws after swimming. Licking causes bacteria to enter through the skin and cause infection.
- Wash your hands frequently when handling your dog.
- Clean your dog’s ears regularly. Use cotton swabs dipped in warm water and alcohol. Do not use Q-tips because they contain petroleum.
- Don’t let your dog sleep near carpets or rugs. These items harbor dust particles that can irritate dog’s dog’s eyes.
- Never give your dog food or treats at night. Food can fall onto carpeting and become lodged between the dog’s paws, and they may use them to scratch their eyes.
- Avoid giving your dog too much salt. Salt dries out the eyes and makes them red and irritated.
- Be careful when bathing your dog. Baths should only be done once every two weeks. Bathing too often can lead to bacterial growth in the ear canal.
- Always clean dogs’ mouths are full of germs that can infect their eyes.
- Brush your dog’s teeth daily. Brushing removes plaque buildup and helps keep the dog’s mouth healthy.
Frequently Asked Questions
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