Why Is My Cat’s Eye Watering or Squinting? A cat’s eye may water or squint due to minor irritants like dust or allergies, but it can also signal infections, corneal ulcers, or blocked tear ducts requiring veterinary care. While occasional tearing is normal, persistent eye watering (epiphora) suggests an underlying issue. Common causes range from mild environmental triggers to serious conditions such as conjunctivitis or glaucoma.
Ever noticed your cat's eyes watering and wondered why? Understanding the causes, identifying symptoms, and knowing how to treat and prevent this common issue is crucial. This guide dives into your cat's eye health, helping you become a more informed pet parent.
Table of Content:
What Is Epiphora?
Are Watery Eyes Always a Cause for Concern?
Common Causes of Watery Eyes in Cats
Symptoms That Require Veterinary Attention
How to Treat a Cat’s Watery Eye at Home?
How Long Should You Wait Before Seeing a Vet?
Veterinary Examination: What to Expect
Preventing Eye Problems in Cats
Final Thoughts on Cat Eye Health
Frequently Asked Questions
It is not uncommon for cat owners to notice one or both of their cat’s eyes watering. While occasional tear production is normal, excessive tearing (epiphora) can indicate an underlying issue. Some causes are minor, such as dust or mild allergies, while others, including infections, corneal ulcers, or blocked tear ducts, require veterinary attention.
According to PetMD, approximately 20 to 30 percent of feline veterinary visits involve eye-related concerns. Recognizing the potential causes can help determine whether home care is sufficient or if medical intervention is necessary.
What Is Epiphora?
Epiphora is excessive tearing caused by an overproduction of tears or improper drainage. It can result from blocked tear ducts, eye infections, irritants, eyelid abnormalities, or dry eye syndrome. Symptoms include persistent watery eyes, blurred vision, redness, and skin irritation. Treatment depends on the cause and may include eye drops, warm compresses, tear duct procedures, or surgery for structural issues. If excessive tearing persists, consulting an eye specialist is recommended.
Are Watery Eyes Always a Cause for Concern?
Not necessarily. Occasional tear production is normal, especially if your cat has just woken up or been exposed to a temporary irritant like dust. However, persistent watering, squinting, redness, or discharge should never be ignored.
In the following sections, we will explore the most common causes of watery eyes in cats, how to recognize serious symptoms, effective treatments, and Finally when to see a vet.
Normal vs. Abnormal Eye Watering
Feature Normal Tear Production Abnormal Tear Production (Epiphora)
Tear Amount Small, occasional tears Persistent, excessive tear overflow
Color of Discharge Clear Yellow, green, or blood-tinged
Eye Appearance Bright and clear Red, swollen, or cloudy
Behavior Normal blinking Squinting, pawing at the eye
Why Is My Cat’s Eye Watery? Common Causes of Cat’s Eye Watering
Watery eyes in cats can result from various underlying issues, ranging from mild irritations to serious health conditions. While occasional tearing is normal, persistent eye-watering accompanied by redness, discharge, or discomfort may indicate allergies, infections, or structural problems. Identifying the cause is essential for proper treatment and ensuring your cat's eye health. Below are some of the most common reasons why cats experience excessive tearing and how to manage them.
1. Allergies in Cats
Just like humans, cats can develop allergies that cause excessive tearing and eye irritation. Allergies occur when a cat’s immune system overreacts to harmless substances, leading to inflammation and discomfort. Identifying the specific allergen can help manage symptoms and improve your cat’s quality of life. Below are common allergens, symptoms, and treatment options for allergic reactions in cats.
Can Cats Have Allergies That Cause Watery Eyes?
Yes, cats can develop environmental, food, or seasonal allergies that lead to excessive tear production, redness, and irritation. Common allergens include:
Pollen, dust, and mold (common seasonal irritants)
Household cleaning products (harsh chemicals or fragrances)
Perfumes, air fresheners, and smoke
Certain fabrics or materials (e.g., synthetic fibers)
Food allergies (specific proteins like chicken or beef)
Symptoms of Allergic Reactions in Cats
Cats experiencing allergies may display:
Watery eyes (clear discharge)
Frequent blinking or squinting
Sneezing and nasal discharge
Itchy skin or excessive grooming
Read Also: Why Do Cats Sneeze?
How to Treat Allergies in Cats
For mild allergies, eliminating triggers from the environment can help. Keeping dust levels low, avoiding strong fragrances, and using an air purifier may reduce symptoms.
Veterinarians may recommend:
Antihistamines (e.g., cetirizine or chlorpheniramine, prescribed by a vet)
Eye drops (artificial tears to flush allergens)
Allergy testing (for suspected food or environmental triggers)
Read Also: Cat Allergy Symptoms
2. Eye Infections in Cats
Eye infections are a common cause of watery eyes in cats and can result from bacterial, viral, or fungal pathogens. These infections may develop due to direct contact with infected animals, exposure to contaminated surfaces, or airborne transmission. Early detection and treatment are crucial to prevent complications and protect your cat’s vision. Below are the common causes, symptoms, and treatment options for feline eye infections.
How Do Cats Get Eye Infections?
Eye infections in cats are commonly caused by:
Bacterial infections (e.g., Chlamydia felis, Mycoplasma)
Viral infections (e.g., Feline Herpesvirus - FHV-1, Calicivirus)
Fungal infections (less common but possible in immunocompromised cats)
These infections can spread through direct contact with infected cats, contaminated surfaces, or airborne particles.
Symptoms of an Eye Infection in Cats
Yellow, green, or thick discharge
Red, inflamed conjunctiva (pink eye)
Frequent squinting or pawing at the eye
Cloudiness in the cornea (severe cases)
How Are Cat Eye Infections Treated?
Veterinary treatment depends on the cause:
Bacterial infections → Antibiotic eye drops (e.g., chloramphenicol, erythromycin)
Viral infections → Antiviral medication (e.g., famciclovir for FHV-1)
Severe cases → Oral medications or supportive therapy
3. Foreign Objects in the Eye
Cats are naturally curious and may encounter small debris like dust, sand, or plant material that gets into their eyes. When this happens, their eyes produce excess tears to flush out the irritant. While minor cases resolve on their own, persistent discomfort or excessive tearing may indicate a more serious issue, such as a corneal scratch. Recognizing the symptoms and knowing how to safely assist your cat can help prevent complications.
Can Cats Get Debris Stuck in Their Eyes?
Yes, small particles such as dust, sand, or plant matter can irritate the eye, leading to excessive tearing as a natural defense mechanism.
Symptoms of a Foreign Object in the Eye
Sudden excessive tearing
Blinking or keeping the eye closed
Mild redness without discharge
What to Do if Your Cat Has Something in Its Eye
Examine the eye carefully under good lighting.
Flush the eye gently with sterile saline solution.
Avoid using cotton swabs or tweezers, which may cause injury.
If irritation persists, seek veterinary assistance to prevent corneal scratches.
📌 Fact Check: According to PetMD, up to 25% of minor eye irritations in cats resolve within 24 hours with proper flushing.
4. Blocked Tear Ducts in Cats
Blocked tear ducts prevent proper drainage of tears, leading to persistent wetness around the eyes. This condition is more common in flat-faced (brachycephalic) breeds due to their facial structure. While it doesn’t usually cause pain, chronic tear overflow can lead to staining and skin irritation. Understanding the symptoms and treatment options can help manage the condition effectively.
How Do Blocked Tear Ducts Cause Watery Eyes?
Tears drain through small ducts near the inner corner of the eye. If these ducts become blocked, tears overflow instead of draining normally.
Symptoms of a Blocked Tear Duct
Persistent wetness around the eye
Dark tear stains (especially in light-colored cats)
No signs of infection (no redness or discharge)
Which Cat Breeds Are Prone to Blocked Tear Ducts?
Persians
Himalayans
Exotic Shorthairs
How to Treat Blocked Tear Ducts in Cats?
Veterinarians may flush the tear ducts to remove blockages. In some cases, chronic issues require routine eye cleaning to prevent secondary infections.
📌 Fact Check: A 2021 study on feline ophthalmology found that brachycephalic breeds (flat-faced cats) have a 70% higher likelihood of experiencing tear duct abnormalities.
5. Corneal Ulcers in Cats (Scratches or Eye Injuries)
Corneal ulcers are painful eye injuries that occur when the outer layer of the eye is scratched or damaged. These ulcers can develop from rough play, contact with sharp objects, or untreated infections. If left untreated, they may worsen and lead to vision loss. Early detection and veterinary care are essential to ensure proper healing and prevent complications.
Read Also: Essential Tips for a Happy Feline Companion
What Is a Corneal Ulcer?
A corneal ulcer is an open sore or wound on the surface of the eye. It occurs when the protective outer layer (cornea) is scratched, infected, or damaged.
Causes of Corneal Ulcers in Cats
Rough play with other cats (scratches from claws)
Contact with sharp objects (branches, thorns, or debris)
Self-trauma from excessive rubbing (often due to allergies)
Untreated infections that erode the cornea
Symptoms of a Corneal Ulcer
Excessive tearing and squinting
Cloudiness or bluish tint in the eye
Visible scratch or indentation on the eye’s surface
Frequent blinking and sensitivity to light
How Are Corneal Ulcers Treated?
Veterinary Treatment:
Antibiotic eye drops (to prevent infection)
Pain relief medication (to reduce discomfort)
Collar (Elizabethan cone) to prevent rubbing
Surgery or grafting (for deep or non-healing ulcers)
📌 Fact Check: According to the Veterinary Ophthalmology Journal, up to 80% of feline corneal ulcers heal within two weeks with proper treatment, but untreated ulcers can lead to blindness.
6. Conjunctivitis in Cats (Pink Eye)
Conjunctivitis is inflammation of the conjunctiva, the thin pink membrane lining the eye and inner eyelids. It is one of the most common eye conditions in cats and can be infectious or non-infectious.
Causes of Conjunctivitis
Viral infections (Feline Herpesvirus - FHV-1, Calicivirus)
Bacterial infections (Chlamydia felis, Mycoplasma)
Allergies or irritants (dust, smoke, perfumes)
Autoimmune diseases (less common but possible)
Symptoms of Conjunctivitis in Cats
Red, swollen eyelids
Watery or thick discharge (clear, yellow, or green)
Frequent blinking or pawing at the eyes
Sensitivity to light
Treatment for Conjunctivitis
📌 Veterinary Treatment:
Antibiotic or antiviral eye drops (based on infection type)
Steroid drops (for inflammation in non-infectious cases)
Supportive care (for viral conjunctivitis, which has no direct cure)
7. Upper Respiratory Infections (Cat Colds)
Feline upper respiratory infections (URIs) are common illnesses that can cause watery eyes, sneezing, and nasal congestion. These infections are often caused by viruses like Feline Herpesvirus (FHV-1) and Calicivirus, but bacteria such as Bordetella and Chlamydia felis can also be responsible. While mild cases may resolve on their own, more severe infections require veterinary care, including antibiotics, antiviral medications, and supportive treatments like steam therapy to ease congestion.
Can Respiratory Infections Cause Watery Eyes?
Yes, many feline upper respiratory infections (URIs) cause excessive tearing, nasal congestion, and sneezing.
Common Causes of URIs in Cats
Feline Herpesvirus (FHV-1)
Feline Calicivirus (FCV)
Bacterial infections (Bordetella, Chlamydia felis)
Symptoms of a Feline Upper Respiratory Infection
Watery or mucus-filled eyes
Sneezing and nasal discharge
Congested breathing or coughing
Loss of appetite or lethargy
How Are Upper Respiratory Infections Treated?
Veterinary Treatment:
Antibiotics (for bacterial infections)
Antiviral medications (for herpesvirus-related cases)
Humidifiers or steam therapy (to clear nasal congestion)
Supportive care (hydration, nutrition, rest)
8. Breed-Specific Issues and Genetic Factors
Some cat breeds are naturally prone to watery eyes due to their facial structure. Brachycephalic (flat-faced) breeds like Persians, Himalayans, and Exotic Shorthairs have shortened tear ducts or shallow eye sockets, making tear drainage less efficient. This can lead to excessive tearing, tear staining, and even blocked ducts. Regular eye cleaning, veterinary tear duct flushing, and a well-balanced diet may help manage these issues and prevent discomfort.
Are Some Cat Breeds Prone to Watery Eyes?
Yes, certain breeds are genetically predisposed to excessive tear production due to their facial structure.
Breeds Prone to Chronic Watery Eyes
Breed Reason for Watery Eyes
Persian Short tear ducts, flat face (brachycephalic)
Himalayan Tear duct malformation
Exotic Shorthair Shallow eye sockets
British Shorthair Prone to blocked tear ducts
How to Manage Chronic Watery Eyes in Flat-Faced Cats
Regular tear stain cleaning (to prevent skin irritation)
Veterinary tear duct flushing (if severe blockage occurs)
Specialized diets (some nutrients may support eye health)
📌 Fact Check: According to Veterinary Ophthalmology, brachycephalic cat breeds have a 70% higher risk of blocked tear ducts compared to other breeds.
For a detailed resource on cats, explore our comprehensive guide on cat pregnancy.
Symptoms That Require Veterinary Attention
While some cases of watery eyes in cats are mild and resolve on their own, persistent or worsening symptoms may indicate a more serious condition requiring veterinary evaluation. Identifying these warning signs early can help prevent pain, infections, and potential vision loss.
When Should You Be Concerned About Your Cat’s Watery Eyes?
The following symptoms indicate a need for immediate veterinary attention:
1. Continuous or Excessive Tearing for More Than 48 Hours
Occasional eye watering is normal, but persistent tearing that lasts more than two days may signal an underlying issue, such as blocked tear ducts, infections, or eye injuries.
2. Thick or Colored Eye Discharge
Yellow, green, or blood-tinged discharge is a sign of infection or inflammation.
A thick, sticky discharge may indicate conjunctivitis or a bacterial infection.
If discharge forms a crust around the eye, it may cause discomfort and difficulty blinking.
3. Redness, Swelling, or Eye Inflammation
Inflamed eyelids (blepharitis) or red conjunctiva suggest infection, allergies, or irritation.
Swelling around the eye could indicate an abscess, trauma, or an underlying illness.
Persistent redness might be linked to uveitis, a painful condition that affects the inner eye.
4. Squinting, Blinking, or Keeping One Eye Closed
If your cat is squinting or avoiding opening one eye, it may indicate pain, corneal ulcers, or eye injuries.
Frequent blinking may signal foreign objects or irritation.
Squinting is also a common sign of glaucoma, which increases intraocular pressure and can lead to blindness.
5. Cloudy or Bluish Tint in the Eye
A hazy or cloudy appearance could indicate a corneal ulcer, cataract, or degenerative eye disease.
Keratitis, an inflammation of the cornea, can cause cloudiness along with excessive tearing.
6. Sensitivity to Light (Photophobia)
If your cat avoids bright areas or squints in well-lit rooms, it may have an eye injury or inflammation.
Uveitis and corneal damage are common causes of light sensitivity in cats.
7. Excessive Rubbing or Scratching at the Eye
Persistent pawing at the eye can worsen irritation or cause self-inflicted scratches.
Excessive rubbing may be linked to dry eye (keratoconjunctivitis sicca), allergies, or infections.
8. Visible Foreign Object in the Eye
Dust, debris, or small objects trapped in the eye can cause constant tearing, discomfort, and squinting.
Do not attempt to remove a deeply embedded object at home—seek veterinary care immediately.
9. Behavior Changes or Signs of Pain
A cat experiencing eye pain may become lethargic, hide more often, or lose its appetite.
Head shaking or rubbing their face against objects can indicate discomfort.
If your cat is vocalizing more than usual, it may be a sign of significant pain.
Read Also: Guide to Understanding Your Cat's Behavior
How to Treat a Cat’s Watery Eye at Home?
For mild cases of watery eyes caused by dust, allergies, or minor irritants, home treatment may provide relief. However, if symptoms persist for more than 48 hours or worsen, professional veterinary care is essential.
1. Cleaning the Eyes Safely
Cleaning your cat’s watery eyes properly can help reduce the risk of infections and ensure their comfort. This gentle process should be done carefully to avoid any irritation. Here's a step-by-step guide to cleaning your cat’s eyes safely:
How to Properly Clean a Cat’s Watery Eyes
Keeping your cat’s eyes clean can help prevent infections and discomfort. Follow these steps to clean them safely:
Step-by-Step Guide:
Wash Your Hands – Before touching your cat’s eyes, wash your hands with soap and water to avoid introducing bacteria.
Use a Soft, Clean Cloth or Cotton Pad – Avoid tissues or paper towels, as they can leave fibers behind.
Dampen with Sterile Saline Solution – Use a vet-approved saline rinse or warm distilled water.
Gently Wipe from Inner to Outer Corner – Wipe away discharge, using a separate cotton pad for each eye to prevent cross-contamination.
Pat Dry with a Soft Cloth – Do not rub or press too hard on the eye area.
Best Solutions for Eye Cleaning:
Product Type Purpose Where to Buy
Sterile Saline Solution Flushes debris and soothes irritation Pet stores, pharmacies
Veterinary Eye Wipes Gently removes the discharge and tear stains Online, pet supply stores
Chamomile Tea (Cooled & Strained) Natural anti-inflammatory for mild irritation Home Remedy
📌 Fact Check: The American Veterinary Medical Association (AVMA) advises using only sterile, pet-safe saline solutions to clean a cat’s eyes, as human eye drops may contain preservatives that are harmful to felines.
2. Using Artificial Tears for Lubrication
Artificial tears, when approved by a veterinarian, can provide relief for cats suffering from dryness, irritation, or mild allergic reactions affecting their eyes. These drops help to soothe discomfort and promote eye lubrication.
Can Artificial Tears Help Cats?
Yes, vet-approved artificial tears can help soothe dryness, irritation, and mild allergic reactions.
How to Apply Artificial Tears to a Cat’s Eye:
Ensure the cat is calm and relaxed before application.
Gently tilt the head back and pull down the lower eyelid.
Apply 1–2 drops in the affected eye.
Allow your cat to blink naturally to spread the solution.
Only use artificial tears labeled safe for pets. Do not use medicated human eye drops unless prescribed by a veterinarian.
📌 Fact Check: A study published in Veterinary Ophthalmology found that preservative-free artificial tears improve tear film stability and reduce eye irritation in cats prone to dry eye (keratoconjunctivitis sicca).
3. Reducing Environmental Irritants
Cats’ eyes are highly sensitive to their surroundings. Common household irritants can trigger excessive tearing and discomfort. Making small environmental changes can help protect your cat’s eye health.
How to Minimize Household Triggers for Watery Eyes?
Cats’ eyes are sensitive to their environment. Removing common irritants can prevent unnecessary tearing.
Environmental Adjustments for Eye Health:
Trigger Solution
Dust and Pollen Use an air purifier and vacuum regularly.
Cigarette Smoke Avoid smoking indoors around pets.
Strong Cleaning Chemicals Switch to pet-safe, fragrance-free cleaners.
Scented Candles & Air Fresheners Use unscented or natural alternatives.
Cats with allergies may benefit from keeping windows closed during high pollen seasons or using HEPA air filters to reduce airborne allergens.
📌 Fact Check: According to PetMD, household air quality plays a major role in feline respiratory and ocular health, with smoke exposure being a leading cause of chronic watery eyes in indoor cats.
Read Also: How to Keep Your Cat Healthy
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