Why does my cat have a film over one eye? - briefly
Your cat may have a film over one eye due to corneal dystrophy or anterior uveitis, both of which are common conditions in felines. If you notice this issue, it's crucial to consult with a veterinarian promptly for proper diagnosis and treatment.
Why does my cat have a film over one eye? - in detail
A thin, bluish-gray membrane known as the nictitating membrane or "third eyelid" is often mistaken for a film over a cat's eye. This structure serves several important functions in feline ocular health and overall wellbeing.
Firstly, the nictitating membrane acts as a protective shield for the eye. When a cat senses potential danger or irritation, such as during a fight or exposure to dust, this third eyelid can swiftly move across the eyeball, safeguarding it from harm. Additionally, it helps to spread tears evenly across the cornea, maintaining proper hydration and promoting optimal eye health.
Another significant role of the nictitating membrane is in regulating tear production and distribution. It contains a tear gland that produces a substantial portion of a cat's tears, ensuring continuous lubrication and clarity of vision. By effectively managing tear flow, this structure helps prevent dryness and infection in the eye.
In some cases, the persistent presence or unusual appearance of the third eyelid may indicate underlying health issues. Conditions such as dehydration, anemia, or systemic illnesses can cause the nictitating membrane to protrude more than usual. If you observe that your cat's third eyelid is frequently visible or appears swollen, it is advisable to consult a veterinarian for a thorough examination and appropriate care.
In summary, the thin film over your cat's eye is likely the nictitating membrane, which plays crucial roles in protecting the eye, regulating tear production, and maintaining ocular health. However, if you notice any abnormalities or persistent issues with this structure, prompt veterinary attention is recommended to ensure your cat's wellbeing.