Understanding the Symptoms of Cataracts in Cats


If you’ve noticed that your furry feline friend’s eyes appear cloudy or have a bluish-white tint, it’s possible they may be dealing with cataracts. Cataracts in cats are a common occurrence, especially in senior cats, and can significantly impact their vision. In this article, we’ll explore the symptoms of cataracts in cats and provide you with a better understanding of what to look out for. Understanding these symptoms can help you identify the condition early on and seek appropriate veterinary care to ensure your cat’s eye health. So, let’s dive in and learn more about cataracts in cats!

Understanding the Symptoms of Cataracts in Cats

What Are Cataracts in Cats?

Cataracts in cats refer to the clouding or opacification of the lens in their eyes, leading to impaired or loss of vision. The lens is a transparent structure located behind the iris, and it helps to focus light onto the retina, allowing cats to see clearly. When cataracts develop, the lens becomes cloudy, hindering the passage of light and causing vision problems for the affected feline.

Causes of Cataracts in Cats


Genetics can play a significant role in the development of cataracts in cats. Some breeds are more prone to this condition, such as Persians, Siamese, and Himalayans. These genetic factors can predispose certain cats to have structural abnormalities in their lens, increasing the likelihood of cataract formation.

Diabetes Mellitus

Diabetes mellitus, a metabolic disorder characterized by high blood sugar levels, can also lead to cataracts in cats. Elevated blood glucose levels can cause changes in the lens, leading to the formation of cataracts. Diabetic cats are particularly susceptible to developing cataracts, and the severity of the cataracts can worsen if the diabetes is not well-controlled.


As cats age, their risk of developing cataracts increases. Age-related cataracts are more commonly seen in older cats, and the natural aging process can contribute to the degeneration of the lens, leading to the formation of cataracts.

Eye Trauma

Eye trauma, such as direct injury to the eye or exposure to harmful substances, can cause cataracts in cats. A severe blow or penetrating injury to the eye can damage the lens, resulting in cataract formation.

Nutritional Imbalances

Nutritional imbalances, specifically deficiencies in certain vitamins and antioxidants, can contribute to the development of cataracts in cats. A lack of essential nutrients necessary for maintaining healthy eye tissues can lead to lens deterioration and cataract formation.

Signs and Symptoms of Cataracts in Cats

Detecting cataracts in cats might not always be straightforward, but there are several signs and symptoms that pet owners can watch out for:

Cloudy or Hazy Appearance in the Eyes

One of the most common signs of cataracts is the presence of a cloudy or hazy appearance in the affected cat’s eyes. The normally clear lens becomes opaque, causing a noticeable change in the eye’s appearance.

Loss of Vision or Blindness

Cataracts can lead to partial or complete loss of vision in cats. Cats with cataracts may bump into objects, appear disoriented, or have difficulty navigating familiar spaces. In advanced cases, they may experience complete blindness.

Changes in Eye Color

Cataracts can cause changes in the eye color of cats. The affected eye may appear more grey or bluish due to the opacity of the lens.

Sensitivity to Light

Cats with cataracts may exhibit increased sensitivity to light, also known as photophobia. They may avoid well-lit areas or squint their eyes in bright environments.

Bumping into Objects or Furniture

As their vision deteriorates, cats with cataracts might accidentally bump into objects or furniture within their surroundings. This can be a result of reduced depth perception and impaired visual acuity.

Difficulty Navigating Familiar Spaces

Cataracts can make it challenging for cats to navigate familiar spaces. They may become hesitant to move around, as their impaired vision can cause them to misjudge distances and obstacles.

Visible Increase in Eye Size

In some cases, cats with cataracts may experience an increase in the size of their eyes. This can occur due to lens swelling associated with cataract formation.

Rubbing or Pawing at the Eyes

Cats with cataracts may exhibit signs of eye discomfort by frequently rubbing or pawing at their eyes. This behavior can indicate irritation or pain caused by the cataracts.

Unusual Eye Discharge

Cataracts can sometimes cause an abnormal discharge from the eyes in cats. The discharge may be watery, thick, or discolored, indicating an underlying issue related to the cataracts.

Behavioral Changes

Cats with cataracts may exhibit changes in their behavior. They might become more withdrawn, less active, or display signs of frustration due to their visual impairment.

Diagnosing Cataracts in Cats

If you suspect that your cat may have cataracts, it is essential to seek veterinary care for a proper diagnosis. The veterinarian will perform a thorough examination of your cat’s eyes and may utilize various diagnostic methods, including:

Physical Examination

During the physical examination, the veterinarian will examine your cat’s eyes for any visible signs of cataracts. They will also assess your cat’s overall health to determine if any underlying conditions could be contributing to the cataracts.

Specialized Eye Tests

Specialized eye tests, such as slit-lamp biomicroscopy and ophthalmoscopy, can provide a more detailed evaluation of the affected cat’s eyes. These tests allow the veterinarian to examine the lens and other structures within the eye to confirm the presence of cataracts.

Laboratory Tests

In cases where diabetes mellitus or other underlying medical conditions are suspected, the veterinarian may recommend laboratory tests to assess your cat’s blood glucose levels or perform other relevant investigations. These tests can help identify any underlying causes or contributing factors to the development of cataracts.

Understanding the Symptoms of Cataracts in Cats

Treatment Options for Cataracts

The treatment options for cataracts in cats depend on various factors, including the severity of the cataracts, the overall health of the cat, and the presence of any underlying conditions. The two primary treatment approaches for feline cataracts are:

Conservative Management

Conservative management focuses on managing any underlying conditions contributing to the cataracts. For example, if diabetes mellitus is present, regulating blood glucose levels through appropriate diet, medication, and lifestyle modifications may help slow the progression of cataracts. However, conservative management cannot reverse or eliminate existing cataracts.

Surgical Intervention

Surgical intervention is the primary treatment option for cataracts in cats. The most common surgical procedure is called phacoemulsification, where the cloudy lens is removed and replaced with an artificial intraocular lens. It is crucial to note that not all cats with cataracts may be suitable candidates for surgery, as factors such as overall health, age, and individual circumstances need to be considered.

Prevention of Cataracts in Cats

While not all cataracts can be prevented, there are several steps cat owners can take to minimize the risk of cataract formation:

Genetic Testing and Breeding

If you are considering breeding cats at risk of hereditary cataracts, genetic testing can help identify carriers and allow for selective breeding to reduce the transmission of this condition to offspring.

Maintaining a Healthy Diet and Weight

Providing a balanced and nutritious diet that meets the specific needs of your cat can promote overall eye health. Additionally, maintaining a healthy weight through portion control and regular exercise can help minimize the risk of conditions like diabetes, which can contribute to cataracts.

Annual Veterinary Check-ups

Regular veterinary check-ups are essential for monitoring your cat’s overall health, including their eye health. Early detection of any underlying conditions or the early stages of cataract formation can allow for timely intervention and management.

Minimizing Exposure to Eye Trauma

Taking precautions to minimize the risk of eye trauma can help reduce the incidence of cataracts. This can include keeping your cat indoors or, if outdoors, ensuring a safe and supervised environment to minimize the potential for injury to the eyes.

Understanding the Symptoms of Cataracts in Cats

Living with a Cat with Cataracts

If your cat has been diagnosed with cataracts, there are ways to ensure they live a comfortable and fulfilling life:

Creating a Safe Environment

Make sure your home is cat-friendly by removing any potential hazards or obstacles that could pose a risk to your cat’s safety. Clear walkways, provide easy access to essential areas, and avoid rearranging furniture to maintain a familiar layout.

Assisting with Daily Activities

Help your cat with daily activities such as feeding, drinking, and using the litter box. You can provide assistance by placing food and water bowls in accessible locations and using low-sided litter boxes for easy entry and exit.

Understanding Your Cat’s Limitations

Recognize and respect your cat’s limitations. Understand that they may no longer be able to engage in certain activities or have the same level of independence they once had. Adapt your expectations and provide extra support and care as needed.

Providing Emotional Support

Cats with cataracts may experience anxiety or discomfort due to their impaired vision. Offering emotional support through gentle reassurance, maintaining a consistent routine, and providing a safe and secure environment can help alleviate any stress or anxiety your cat may feel.

Coping with Blindness in Cats

If your cat develops complete blindness due to cataracts or other reasons, there are strategies to help them adapt to their new circumstances:

Adapting the Home Environment

Creating a predictable and familiar home environment is crucial for a blind cat. Avoid making significant changes to the layout or furniture, and consider using textured rugs or mats to assist with spatial orientation.

Using Scent and Sound Cues for Navigation

Utilize scent and sound cues to help your blind cat navigate their surroundings. You can place scented objects strategically to mark important locations such as food bowls or litter boxes, and also use auditory cues to guide them, such as using a specific sound or voice command for reassurance.

Introducing Dietary and Environmental Changes

Switching to consistent mealtimes and a stable diet can help your blind cat maintain a routine and alleviate any confusion. Additionally, making environmental changes such as using auditory toys or providing scratching posts can enrich their environment and stimulate their remaining senses.

Implementing Interactive Play and Mental Stimulation

Regular interactive play sessions and mental stimulation can help keep your blind cat physically and mentally engaged. Toys with different textures, sounds, and scents can provide sensory stimulation and promote exercise and mental agility.

Understanding the Symptoms of Cataracts in Cats

When to Seek Veterinary Care

It is important to seek veterinary care if you observe any concerning signs or symptoms in your cat, especially if they could indicate cataracts. Immediate veterinary attention is required under the following circumstances:

  • If your cat suddenly experiences a complete loss of vision.
  • If your cat shows signs of severe eye pain or discomfort.
  • If there is a sudden increase in eye redness or swelling.
  • If your cat’s eyes have a rapid onset of abnormal discharge.
  • If your cat’s behavior becomes increasingly abnormal or distressing.

Consult your veterinarian if you notice any changes in your cat’s vision, behavior, or eye health. Early detection and intervention can help manage the condition and improve your cat’s quality of life.


Cataracts in cats can significantly impact their vision and overall well-being. Recognizing the signs and symptoms of cataracts, understanding the underlying causes, and seeking prompt veterinary care are essential steps in providing appropriate treatment and support. By taking preventive measures, creating a safe and accommodating environment, and offering emotional and physical support, you can help your cat adjust to living with cataracts or blindness and ensure they continue to lead a happy and fulfilling life.

Understanding the Symptoms of Cataracts in Cats

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