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Common Cat Eye Problems: Signs, Causes, and Treatment

October 20 2026

Is your feline friend sleeping right now? Chances are, she probably is. Kitties are very dedicated to their daily routines, especially their napping agendas. Cats can be remarkably good at carrying on with their day even when something hurts, so subtle eye changes are worth noticing. Animal Eye Care of New England provides specialty veterinary eye care for families in New England, including the Providence, RI area. We see many kitties with common cat eye problems, including conditions affecting the cornea, conjunctiva, eyelids, and deeper eye structures. Changes such as squinting, redness, discharge, cloudiness, or keeping an eye closed can signal that your feline friend needs attention from a veterinarian or veterinary eye specialist.

Some feline eye disorders are short-lived, while others can recur or require ongoing management. Feline herpes eye problems are a key example, because the virus can remain in the body and cause future episodes that may seem to come out of nowhere. In contrast, conditions such as feline corneal sequestrum and feline eosinophilic keratitis affect the cornea in distinct ways. Understanding these and other recurring eye problems in cats can help you recognize changes early and seek appropriate veterinary care.

Signs of Common Cat Eye Problems to Watch For

Your cat’s eyes should normally be clear and bright, at least when she is actually awake. You should not see persistent squinting, excessive tearing, or unusual discharge. If Fluffy begins holding one eye partly closed, rubbing her face against things obsessively/in irritation, or avoiding light, there may be something going on. Cats sometimes make these changes easy to miss by becoming quieter, sleeping even more than usual, or hiding.

Visible signs of eye problems in cats can include redness, swelling, cloudiness, excessive tears, thick discharge, crusting around the eyelids, or changes in the eye’s color or surface. You may also notice that the third eyelid is more visible than usual. Changes in pupil size or shape, or apparent vision problems. An eye that suddenly looks larger would also warrant immediate veterinary attention.

Don’t assume discharge means your kitty simply has an infection. Corneal ulcers, viral disease, inflammation, glaucoma, eyelid problems, and other disorders can produce overlapping signs. An eye exam helps identify which structures are affected so that treatment can address the underlying condition rather than appearance alone.

1. Feline Herpes Eye Problems

Feline herpesvirus type 1, often abbreviated FHV-1, is a major cause of ocular and upper respiratory disease in cats. Infection is widespread in the feline population, and after initial infection, the virus can remain latent within the body. A cat may therefore experience future flare-ups rather than only one episode in its lifetime.

Feline herpes eye problems can include conjunctivitis, squinting, tearing, discharge, and corneal disease. The virus can contribute to corneal ulceration, and some cats develop recurrent ocular problems associated with reactivation. Stress or illness may trigger recurrence in some cats, although individual patterns vary.

Kittens may experience particularly significant disease when first infected. Herpesvirus may cause issues that look like an eye infection, but are actually part of recurring viral disease. Sharing all you know about your pet’s history, especially regarding previous respiratory or eye problems, with your veterinarian can help when a new episode develops. This may be harder with a rescue cat, of course.

Treatment depends on the structures affected and the severity of the disease. Depending on the individual cat, your veterinarian may consider antiviral therapy, supportive eye care, treatment for secondary complications, or other medications. Because a painful corneal ulcer can sometimes accompany herpesvirus disease, don’t dismiss persistent squinting or holding the eye closed as a routine flare-up.

2. Conjunctivitis in Cats

The conjunctiva lines the eyelids and covers parts of the eye. When it becomes inflamed, your cat may develop redness, swelling, tearing, discharge, or a more visible third eyelid. One or both eyes can be affected.

Confirming conjunctivitis won’t tell you what caused the inflammation. Viral infections, including feline herpesvirus, can contribute, as can certain bacterial organisms, irritation, trauma, and other ocular disorders. We may consider your cat’s age, vaccination history, other symptoms, household exposure, and examination findings when determining the likely cause.

Recurring eye problems in cats deserve particular attention in certain situations, such as if conjunctivitis repeatedly returns after apparently improving. A recurring pattern may warrant a closer look at underlying infectious or inflammatory causes rather than repeated treatment based solely on redness or discharge. Your veterinarian may recommend additional diagnostic testing depending on the history and clinical findings.

3. Corneal Ulcers in Cats

The cornea is the transparent surface at the front of your cat’s eye. A corneal ulcer occurs when this delicate outer tissue is damaged. Trauma, feline herpesvirus, eyelid abnormalities, foreign material, and other ocular conditions can contribute to ulcer formation.

Corneal ulcers can be very painful. Your feline pal may squint, keep her eye closed, paw at her face, or avoid bright light. Tearing, redness, discharge, or a cloudy appearance can accompany the discomfort. An eye that looks relatively normal to you can still be painful, as some ulcers are hard to see without diagnostic staining.

Veterinarians commonly use stains to evaluate corneal ulcers. Treatment varies by the ulcer’s cause, depth, appearance, and whether complications are present. We always discuss options and next steps after the patient’s eye has been examined.

4. Feline Corneal Sequestrum

A feline corneal sequestrum is a distinctive corneal disorder in which an area of the cornea develops brown-to-black discoloration associated with diseased corneal tissue. The lesion can vary in size, depth, and severity. Some cats show obvious discomfort, while the dark area itself may be the first change an owner notices. Although corneal sequestra can occur in cats of many breeds, brachycephalic cats, such as Persians, Himalayans, and Burmese, seem to be predisposed to it. Chronic corneal irritation and feline herpesvirus have also been associated with the condition. 

Signs can include squinting, tearing, redness, discharge, rubbing at the eye, and visible brown or black corneal discoloration. Blood vessels may grow toward the affected area as the eye responds to chronic irritation. 

Management depends on the lesion’s depth, progression, and effect on your cat’s comfort. Some cases may be merely monitored, while others may require surgical treatment. A veterinary ophthalmologist can evaluate the cornea and surrounding tissues and discuss the approach best suited to your kitty.

5. Feline Eosinophilic Keratitis

Feline eosinophilic keratitis, or EK, is an inflammatory condition affecting the cornea and sometimes the conjunctiva. The condition can create distinctive raised, irregular areas on the corneal surface. These lesions are often described as white, pink, or gray and look like plaque or cottage cheese. 

The disorder involves inflammatory cells called eosinophils and other immune cells. Feline herpesvirus has been detected in some affected cats, although the relationship between herpesvirus and development of the condition is not completely straightforward. Veterinary examination and appropriate diagnostic testing are needed, rather than assuming every unusual corneal plaque is caused by herpesvirus.

Cats may develop tearing, redness, discharge, squinting, or visible corneal changes. You may also notice swelling, pawing, or other signs of pain. Some cats always seem pretty comfortable, which can make these and other conditions easy to underestimate. Because other corneal diseases can create abnormal tissue or opacity, veterinary evaluation is important for an accurate diagnosis.

Treatment generally focuses on controlling the abnormal inflammatory response and addressing relevant concurrent ocular disease. Long-term management may be necessary because recurrence can occur. Follow-up examinations help your veterinarian assess whether the cornea is responding and whether treatment needs adjustment.

6. Cataracts in Cats

A cataract is an opacity within the lens of the eye. Cataracts are less common in cats than in dogs, but they can still develop and interfere with kitties’ vision. Inflammation inside the eye, trauma, inherited factors, and other ocular disorders may contribute to cataract formation in cats.

A cataract may appear as cloudiness within the pupil, but not every cloudy feline eye has a cataract. Corneal changes, inflammation, glaucoma, or other structural issues can also alter the eye’s appearance. A veterinary eye examination can determine where the opacity is located and whether it affects vision.

The underlying cause matters in cats because lens changes may occur alongside other ocular disease. Treatment recommendations depend on the individual eye and the health of the structures surrounding the lens. Your veterinary eye specialist can determine whether monitoring, medical management, or further evaluation is appropriate.

7. Uveitis in Cats

Uveitis is inflammation of the uvea, the middle layer of the eye. It can be painful and can cause vision problems. Uveitis can develop because of ocular disease, trauma, infection, immune-mediated processes, systemic illness, or other causes.

Signs may include squinting, redness, tearing, cloudiness, light sensitivity, or pupil changes. The affected eye may look red and may seep discharge or pus. Because some causes of feline uveitis involve disease elsewhere in the body, your veterinarian may recommend more thorough diagnostics, rather than just an eye examination.

Prompt evaluation is valuable because persistent inflammation can damage delicate structures within the eye. 

8. Glaucoma and Vision-Threatening Eye Disease in Cats

Glaucoma involves increased pressure within the eye that can damage the retina and optic nerve. In cats, glaucoma is often associated with another problem and is rarely an isolated primary disease. Many things may interfere with normal fluid movement inside the eye. These include chronic inflammation, tumors, and lens disorders. 

A cat with glaucoma may develop cloudiness, redness, vision loss, or an enlarged affected eye. Pain can be hard to recognize because some cats become quieter, hide more, eat less enthusiastically, or resist having their face touched. Measuring intraocular pressure is necessary to determine whether pressure is abnormal.

Vision loss can also result from retinal disease, severe inflammation, trauma, or other conditions that may not make the eye dramatically red. If your feline companion begins bumping into objects, hesitating before jumping, struggling in dim light, or behaving unusually in familiar surroundings, schedule a veterinary examination. Sudden vision loss deserves prompt attention.

When Do Cat Eye Problems Need Urgent Veterinary Care?

Take eye pain and sudden visual changes seriously. Contact a veterinarian promptly if your cat holds an eye closed, squints intensely, has sustained an eye injury, develops marked cloudiness or swelling, or suddenly appears unable to see. Bleeding, a visibly damaged cornea, or an eye that has changed significantly in size or position also warrants urgent attention.

Cats are skilled at hiding discomfort, so that behavior can provide important clues. Hiding, reduced appetite, reluctance to play, unusual aggression when you touch their head, or withdrawal from normal interaction may accompany ocular pain. A dramatic behavioral change combined with an abnormal-looking eye deserves veterinary evaluation.

Avoid using leftover medications or human eye drops without veterinary direction. Some medications useful for one feline eye disease can be inappropriate if a corneal ulcer or another condition is present. Having the eye examined before starting treatment helps protect your feline friend from avoidable complications.

How a Providence, RI Veterinary Eye Specialist Diagnoses Cat Eye Conditions

A veterinary eye exam begins with a careful look at your cat’s eyes, both externally and internally. Depending on the suspected problem, diagnostic testing may include measuring tear production, staining the cornea, measuring intraocular pressure, or examining internal ocular structures with specialized instruments. Your vet may recommend additional testing when infection, systemic disease, or a specific corneal disorder is suspected.

Your pet’s history can be especially useful for recurring eye disease. Tell the veterinarian about previous episodes, respiratory signs, medications, known herpesvirus infections, trauma, changes in appetite or behavior, and whether one or both eyes are usually affected. Pictures can also help document how an ocular problem changes over time.

Specialty evaluation may be recommended for complicated corneal disease, recurrent ulcers, glaucoma, cataracts, unusual corneal lesions, or conditions that do not respond as expected to initial treatment. A veterinary ophthalmologist has advanced training focused specifically on animal eye disease. This expertise can be valuable when your kitty’s diagnosis or treatment requires more specialized assessment.

You’ll find a good piece on eye problems in kitties up on PetMD. Cats.com also has some helpful information on common cat eye problems.

Frequently Asked Questions About Common Cat Eye Problems

Why does my cat keep getting eye problems?

Recurring eye problems in cats can be associated with feline herpesvirus, chronic inflammation, corneal disease, eyelid abnormalities, immune-mediated conditions, or other underlying disorders. Because several diseases can cause similar episodes of redness, discharge, or squinting, repeated symptoms deserve veterinary evaluation rather than assuming each recurrence is a simple infection.

A detailed history can help identify patterns, particularly if episodes follow illness, environmental changes, or stressful events. Your veterinarian may also recommend diagnostic testing based on the structures affected. Treatment and long-term management depend on identifying the most likely underlying cause.

Can feline herpes cause recurring eye infections?

Feline herpesvirus can cause recurring ocular disease. This is because the virus remains latent in the body after infection and may later be reactivated. Affected cats can experience conjunctivitis, tearing, discharge, squinting, or corneal disease during episodes. These flare-ups may resemble a new eye infection even when viral reactivation contributes to the symptoms.

Of course, not every recurring red or watery eye is caused by herpesvirus. Corneal disorders, other infectious organisms, inflammation, and structural problems can produce similar signs. 

What does a corneal sequestrum look like in a cat?

A feline corneal sequestrum typically appears as a brown, amber, or black area within the cornea, the clear surface at the front of the eye. The affected area may be accompanied by tearing, redness, squinting, discharge, or blood-vessel growth. The size, depth, color, and amount of discomfort can vary.

A veterinary ophthalmologist can assess how deeply the lesion involves the cornea and whether to consider medical monitoring or surgical treatment. Early evaluation also helps identify other corneal abnormalities.

What is feline eosinophilic keratitis?

Feline eosinophilic keratitis is an inflammatory corneal disease that can produce raised white, pink, or gray plaque-like lesions on the eye. The conjunctiva may also be involved, which is why the condition is sometimes called eosinophilic keratoconjunctivitis. Cats may develop tearing, redness, discharge, squinting, or visible corneal changes.

Diagnosis requires veterinary evaluation because other corneal diseases can resemble it. Examination of cells collected from the affected tissue can help identify the characteristic inflammatory response. 

When should you take your cat to a veterinary ophthalmologist?

We would recommend contacting a veterinary ophthalmologist if your cat has complicated, recurrent, painful, or vision-threatening eye disease, or when your regular veterinarian recommends a specialty evaluation. Corneal sequestrum, recurrent ulcers, glaucoma, cataracts, unusual corneal lesions, and persistent inflammation are a few conditions that may benefit from advanced ophthalmic assessment.

Sudden vision loss or significant eye pain should always receive prompt veterinary attention, not a routine specialty appointment. Your regular veterinarian and eye specialist can work together when appropriate. The goal is to identify the condition, protect comfort, and preserve useful vision whenever possible.

Contact a Providence, RI Vet About Common Cat Eye Problems

Common cat eye problems range from temporary irritation to chronic corneal disease and conditions that can threaten comfort or vision, so persistent changes deserve more than guesswork. Animal Eye Care of New England provides specialty veterinary eye care for cats in the Providence, RI area, including evaluation of feline herpes eye problems, corneal disease, inflammation, and other ocular concerns. If you have been searching for a vet near me, cat ophthalmologist, feline eye specialist, or veterinary clinic for your kitty’s eye condition, contact the clinic to schedule an appointment and get your feline companion’s eyes evaluated.

This article is intended for general educational purposes and cannot diagnose your cat’s eye condition. Consult your veterinarian or veterinary ophthalmologist about redness, pain, discharge, vision changes, recurring eye disease, or other concerns, and follow the diagnostic and treatment recommendations provided for your individual cat.

When a cat develops eye pain, inflammation, cloudiness, or changes in vision, a detailed ophthalmic evaluation can help identify the cause. Serving Boston, MA; Providence, RI; Bridgeport, CT; and the greater New England area, Animal Eye Care of New England specializes in veterinary ophthalmology. Visit our Services page for an overview of our care, or explore Diagnostics, Cornea, Lens, Glaucoma, and Orbital/Globe for more information about feline eye conditions.