Eye Discharge in Cats: Causes, Symptoms, and Treatment

Anything from a simple cold to a serious illness could be causing your cat’s eye discharge. Learn a few of the more common causes of eye discharge, when to see a vet, and what you can do at home to help your feline friend.

Eye Discharge Causes

A healthy cat’s eyes should be bright and clear.

Eye problems can bring out another cat entirely, one who paws at his eyes, squints, or blinks excessively. Because eye problems can lead to devastating consequences -- including surgery or blindness -- always talk to your vet when you notice your cat has irritated eyes. A few common reasons for cat eye discharge include:

• Feline upper respiratory infections. A frequent cause of eye discharge in cats, these can include viruses such as feline calicivirus, a contagious respiratory disease, pneumonitis or rhinotracheitis (herpesvirus), bacteria, and protozoa. Symptoms can be mild or progress to something very serious and may include a sticky, pus-like eye discharge.

• Conjunctivitis (pink eye). An inflammation of the light pink lining around your cat’s eye, conjunctivitis can cause one or both of your cat’s eyes to look red and swollen, be light-sensitive, and have clear, teary or thick mucus eye discharge. Conjunctivitis with fever, diarrhea, and trouble breathing can point to potentially fatal feline infectious peritonitis, though this isn’t very common.

• Corneal disorders. A cat’s cornea, the dome-shaped surface that covers the front of the eye, can become inflamed, injured, or ulcerated. The result may be cloudiness, excessive blinking, inflammation, and increased tear production.

• Watery, tearing eyes (epiphora). Blocked tear ducts, an overproduction of tears, allergies, viral conjunctivitis, and more can be behind your cat’s abnormal tearing.

• Uveitis. An inflammation of the internal structures of the eye, trauma, cancer, immune problems or infections can cause the serious, often painful inflammation of uveitis.

• Dry eye (keratoconjunctivitis sicca). A chronic lack of tear production, dry eye can lead to an inflamed cornea, red eyes, and if left untreated, blindness. Because the watery portion of tears is missing, a yellow, gooey eye discharge can result.

• Other eye discharge causes include feline infectious peritonitis, allergies, something lodged in the eye, or third eyelid problems.

Eye Discharge Treatments

Because so many conditions can lead to eye discharge in cats, you really need to talk to your veterinarian before trying any eye discharge treatments on your cat.

Depending on what your veterinarian finds, treatment for cat eye discharge might include:

• Feline upper respiratory infection. Specific treatments depend on the cause of the infection as well as how serious it is and may include eye medications, antibiotics, decongestants, and fluids.

• Conjunctivitis. Pollen, dust, weeds, or other irritants can cause conjunctivitis, which may be treated with a steroid ointment. if it's caused by a bacterial infection, antibiotic ointments may be used.

• Corneal disorders. Treatment depends on what’s troubling your cat’s cornea, but may include keeping kitty’s eyes clean, antibiotic eye ointment or drops, drops that promote healing, removing loose corneal tissue, cauterization, or surgery.

• Watery, tearing eyes. Under general anesthesia, your vet may use plain water or saline to flush your cat’s blocked tear duct. If there's an infection, antibiotic eye ointment or drops may be needed.

• Uveitis. The right treatment depends on what’s causing your cat’s uveitis, though that’s often hard to diagnose. Care may include eye ointment or drops to control inflammation and pain.

• Feline calicivirus. Secondary bacterial infections, which can cause pneumonia and other serious issues, are common with calicivirus, so always call your vet if you suspect your cat has this disease. Treatment may include symptom control, antibiotics for secondary infections, and supportive care.

• Dry eye. Many things can cause dry eye, from immune-mediated disease to distemper. Treatment can include eye drops or ointments, immune-suppressing drugs, antibiotics, or artificial tears.

When to See a Vet

Your cat’s eyes are as delicate as they are beautiful. Small problems can quickly turn into serious conditions. If your cat’s eye discharge symptoms don’t clear up within 24 hours or if your cat is squinting, talk to your veterinarian right away.

If you have medications left over from a previous eye problem, don’t use them on your cat’s eyes. Different eye issues call for different medications, and you can end up causing serious injury by using the wrong one.

Preventive Home Care for Healthy Eyes

You can help avoid eye problems in your cat by keeping up with yearly vaccinations, avoiding kitty overcrowding, and checking your cat’s eyes frequently for redness, cloudiness, a change in color or shape, discharge, or sensitivity to light.

To safely remove your cat’s eye discharge and make them more comfortable while waiting for their vet appointment, arm yourself with a bag of cotton balls and these simple tips from the ASPCA:

• Dip a cotton ball in water. Wipe away the eye discharge, always from the corner of the eye outward. Use a fresh cotton ball for each eye.

• Steer clear of any over-the-counter drops or washes unless your vet has prescribed them.

Because correct treatment can be so critical to the health and well-being of your cat, always talk to a veterinarian to be sure kitty is getting just the right care needed.

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Related: We have more information under our cat health tags.

What is Retinal Detachment?

The retina is the light-sensitive tissue that lines the inner surface of the eye. When it becomes detached from the tissue supporting it, a very serious situation exists. It is extremely important to get your pet to the veterinarian immediately if you suspect they are having vision problems.

There are several factors that can cause this disorder.

Some of the most common factors include:

• Injuries to the face or eye

• Diabetes

• Tumors

• Infections

• Kidney disease

• High blood pressure (especially in cats)

• Hyperthyroidism (in cats)

• Sickle-cell anemia

• Poisoning

• Cataracts or cataract surgery

• Genetics

• Poor blood clotting

Symptoms

The most serious symptom of a retinal detachment is reduced vision or, in some instances, blindness. The severity of your pet’s ability to see is directly related to the seriousness of how detached her retina is, or if it impacts both eyes. Other symptoms include dilated pupils (when the eye shows no response to changes in light), discoloration of the white of the eye, or leaking of the eye and clumsiness due to your pet’s inability to see well.

Diagnosis

Your veterinarian will perform a complete history and physical examination, including a thorough ophthalmic examination. They may also refer you to a veterinary ophthalmologist for additional evaluation. In addition to providing a thorough examination of your pet, your veterinarian may recommend tests to identify the underlying cause.

These tests may include:

• Chemistry tests to evaluate kidney, liver, and pancreatic function, as well as sugar levels

• A complete blood count to screen for infection, inflammation, anemia, and other blood-related conditions

• Electrolyte tests to ensure your pet isn’t suffering from an electrolyte imbalance

• Screening tests to rule out infectious disease

• Cultures, PCR testing, and other specialized tests, which can identify if specific parasites or diseases could be the cause

• X-rays of the chest and abdomen to look for abnormalities

• A fecal test to rule out fecal parasites

• A thyroid test to determine if the thyroid gland is producing too little (in dogs) or too much (in cats) thyroid hormone.

• Blood pressure measurement

Treatment

It is important to begin treatment as soon as possible to prevent further damage to the eye or permanent blindness. Treatment can include medications and/or surgery. It will depend on the underlying cause of the detachment, the severity of the condition, and your pet’s overall health.

Prevention

While you may not be able to prevent retinal detachment, by being a diligent pet owner and carefully checking your furry friend regularly for anything out of place, you will help catch problems in their earliest stages!

If you have any questions or concerns, you should always visit or call your veterinarian – they are your best resource to ensure the health and well-being of your pets.

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8 Ways to Help a Blind Cat

A blind cat can have a wonderful, happy life. It is not at all uncommon for pets, particularly older ones, to suffer vision loss. Normal cat vision is close to humans or perhaps just a little less. Pets have more problems focusing on near objects than people do, though, which is why your kitty may have some trouble seeing the last few kibbles in the food bowl.

Just as people over the age of 40 tend to need reading glasses, the same vision changes start to develop in almost all cats over the age of five. This normal change, called nuclear sclerosis, results in less flexibility of the lens, a hazy appearance, and less ability to focus on close objects. Pets still see pretty well despite the bluish tint to their eyes. Blind cats typically are still very happy. They continue to enjoy and remain engaged in life and the world around them—including their humans. Kitties do not need to see you to love you.

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Your blind pet’s comfort level, safety, and emotional health are important. Follow these tips to keep the cat happy and comfortable.

Do not move food or litter box.

It is vital to keep the food, water bowls, litter box, and pet beds in the same spot, so your cat can easily find belongings.

Do some scent marking.

It may be helpful to “scent” important objects for the cat with strong odors such as peppermint to help its nose “see” what it is looking for.

Avoid rearranging the furniture.

Blind pets memorize and "mind-map" the house, and moving things around will confuse the cat. It is not at all unusual for a blind cat, for instance, to still insist on making floor-to-counter leaps with confidence as long as its memory remains fresh and accurate.

Safeguard dangerous zones.

Pad the sharp edges of furniture with bubble wrap until your cat learns to avoid the danger. Block off steep stairways with baby gates to prevent falls.

Use your voice to guide your cat.

Your pet’s personality and behavior may change a bit as vision fades. Some pets become more dependent on the owner, and act “clingy”—basically they will treat you as a guide, stand very close, and follow you around. Get in the habit of speaking to your cat when you enter or leave a room to help it keep track of your whereabouts.

Attach a bell to other animals in the house.

In multiple pet homes, another cat or dog may serve as a guide for the blind pet. Help your blind pet by attaching a bell or other noisemaker to the other animal's collar.

Create a safe spot in each room.

To avoid tripping over the pet that is always underfoot, provide a safe, comfy bed in each room. Very social cats may become standoffish once vision fades. They may want to avoid contact with houseguests to avoid being stepped on.

Don't startle your cat.

Blind pets also startle more easily, so always speak to your cat before petting him to avoid being accidentally nipped or swatted in reflex.

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If you suspect your pet is sick, call your vet immediately. For health-related questions, always consult your veterinarian, as they have examined your pet, know the pet's health history, and can make the best recommendations for your pet.

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Related: We have more information under our cat health tags.

Lyme Disease? A Pet Owner's Guide

What is Lyme disease?

Lyme disease (Lyme borreliosis) is an illness that affects both animals and humans (zoonotic disease) and is the most commonly reported vector-borne illness in the United States, according to the U.S. Centers for Disease Control and Prevention (CDC). Transmitted through tick bites, the disease can be difficult to detect and can cause serious and recurring health problems. Therefore, it is best to prevent infection by taking appropriate measures to prevent tick bites and, for dogs, possibly vaccinating against the disease.

The bacterium that causes Lyme disease (Borrelia burgdorferi) is carried and transmitted primarily by the tiny black-legged tick known as the deer tick. Deer ticks are found in forests or grassy, wooded, marshy areas near rivers, lakes or oceans. People or animals may be bitten by deer ticks during outdoor activities such as hiking or camping, or even while spending time in their back yards.

Named after numerous cases were identified in Lyme, Conn., in 1975, the disease has since been reported in humans and animals across the United States and around the world. Within the U.S., it appears primarily in specific areas including the southern New England states; eastern Mid-Atlantic states; the upper Midwest, particularly Wisconsin and Minnesota; and on the West Coast, particularly northern California. The CDC maintains a map detailing confirmed cases of Lyme disease throughout the years.

How to prevent Lyme disease

The best way to protect your pets from Lyme disease is to take preventive measures to reduce the chance of contracting the disease. Even during the last weeks of summer, it's important to remember that pets and people are at greater risk of being infected with Lyme disease and other tick-borne diseases such as anaplasmosis, ehrlichiosis, or Rocky Mountain Spotted Fever.

People with pets should:

• Use reliable tick-preventive products. Speak with your veterinarian about what tick preventive product is right for your pet.

• Work with your veterinarian to decide whether to vaccinate your dog against Lyme disease. Your veterinarian’s advice may depend on where you live, your pet's lifestyle and overall health, and other factors.

• When possible, avoid areas where ticks might be found. These include tall grasses, marshes, and wooded areas.

• Check for ticks on both yourself and your animals once indoors.

• Clear shrubbery/bushes next to homes.

• Keep lawns well maintained.

As noted above, there are preventive Lyme disease vaccines available for dogs, but they aren't necessarily recommended for every dog. Consult your veterinarian to see if the vaccination makes sense for your pets. If your veterinarian does recommend that your dog be vaccinated against Lyme disease, the typical protocol will involve an initial vaccination followed by a booster 2-4 weeks later and annual boosters after that.

Symptoms and treatment of Lyme disease in pets

Pets infected with Lyme disease may not show any signs for 2-5 months. After that time, typical symptoms include:

• Fever

• Loss of appetite

• Lameness

• Joint swelling

• Decreased activity

Recurrent lameness also is possible, and the involved extremity may be tender. Inflammation of the joint can last from days to weeks and may migrate from one extremity to another.

Horses with Lyme disease can develop lameness, joint pain, neurologic disease, eye problems, and dermatitis.

Symptomatically, Lyme disease can be difficult to distinguish from anaplasmosis because the signs of the diseases are very similar, and they occur in essentially the same areas of the country. Lyme disease is diagnosed through a blood test that shows whether an animal has been exposed to the bacterium.

Antibiotics usually provide effective treatment for Lyme disease. However, it’s important to follow your veterinarian’s advice regarding follow-up care after your pet has been diagnosed with and treated for Lyme disease.

Lyme disease is not communicable from one animal to another, except through tick bites. However, if you have more than one pet and one is diagnosed with Lyme disease, your veterinarian might recommend testing for any other pets who may have been exposed to ticks at the same time. In fact, because people and their pets often can be found together outdoors as well as indoors, a Lyme disease diagnosis in any family member – whether human or non-human – should serve as a flag that all family members might consult their physicians and veterinarians, who can advise about further evaluation or testing.

For more information about Lyme disease in people, The American Academy of Pediatrics has more information.

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Planning for Your Pet's Preventive Care Exam

Spring is a bustling time or veterinarians. In small animal medicine, kittens start arriving. Dogs, too, even though they don’t have a seasonal aspect to their reproductive cycles. Spring is a popular time for people to want to add a puppy to the family.

With the weather warming up, preventive medicine gets a boost in the spring, too. Pet owners begin thinking more about heartworms, fleas, ticks, and parasites— which, of course, are often year-round risks.

What is my veterinarian trying to assess during an appointment?

First things first of a wellness visit is a health evaluation. This typically includes a thorough history including your pet’s breed, age, lifestyle, behavior, and diet, then a comprehensive physical exam, including a measuring of thins such as weight, temperature, pulse, and respiration rates. All of the information gathered will be used to further assess whether your pet may be ill.

Assuming your pet receives a clean bill of health at their wellness exam, the appointment is focused more on preventive care: what can be done to prevent your pet from actually getting ill, divided into categories:

• Diagnostics (Heartworm testing, FELV/FIV testing, fecal examinations, etc)

• Parasite control (heartworms, external parasites, and intestinal parasites)

• Vaccinations

• Identification (microchipping, rabies tags)

• Reproductive counseling (spay/neuter)

• Dental Hygiene

• A plan for a follow-up or next routine visit

Your veterinarian will determine the appropriate approach for your pet in each of these categories based on the information gathered in the initial wellness exam, and go over their recommendations with you. This is also a good time to bring up any questions or concerns you have.

How often should I take my pet to the vet?

Adult pets should see their veterinarian at least annually to go over preventive care needs. Puppies and kittens require more frequent visits, usually every few weeks until they are several months old. If your pet hasn’t seen their veterinarian in awhile, consider spring to be your launch into taking the step of scheduling an appointment with your veterinarian today.

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