Why does my cat's eyes roll back white? - briefly
If your cat's eyes are rolling back white, it could be due to dilated pupils caused by excitement or fear. However, this can also indicate an underlying health issue such as high blood pressure or neurological problems, so prompt veterinary attention is advised.
Why does my cat's eyes roll back white? - in detail
When a cat's eyes roll back and appear white, it is often due to a condition known as nystagmus or a related issue with the eyes. This phenomenon can be startling for pet owners, but understanding its causes and implications is essential for ensuring your cat's well-being.
Nystagmus refers to involuntary, rhythmic movements of the eyeballs, which can cause them to roll back and expose the white part of the eye (sclera). This condition can be congenital or acquired, with various underlying causes. Congenital nystagmus is present from birth and may result from inherited genetic abnormalities affecting the brainstem or cerebellum, which control eye movement. Acquired nystagmus develops later in life due to factors such as ear infections (otitis), inner ear disorders, or neurological issues.
In addition to nystagmus, other conditions can cause a cat's eyes to roll back and appear white. These include:
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Strabismus: A condition where the eyes are not properly aligned, leading to one or both eyes appearing deviated or crossed. Strabismus can be congenital or acquired due to trauma or neurological disorders.
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Anisocoria: An abnormal dilation of the pupils, which can cause the eyes to appear white due to the unequal distribution of light. This condition may result from neurological problems, eye injuries, or certain medications.
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Eye Infections or Inflammation: Conditions such as conjunctivitis or uveitis can lead to redness and swelling of the eye tissues, making the white part of the eye more prominent.
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High Blood Pressure (Hypertension): Elevated blood pressure in cats can cause changes in the retina, leading to abnormal eye movements and the appearance of a white eye.
If you notice your cat's eyes rolling back and appearing white, it is crucial to consult with a veterinarian promptly. The vet will perform a thorough examination, including an ophthalmic evaluation and potentially neurological tests, to determine the underlying cause. Treatment options vary depending on the diagnosis but may include medication, surgery, or lifestyle changes to manage the condition effectively.
In summary, when a cat's eyes roll back and appear white, it can be due to several conditions, most notably nystagmus. Prompt veterinary attention is essential for diagnosing the cause and initiating appropriate treatment to ensure your cat's health and well-being.