Cat have an extra eyelid-called the third eyelid- to protect their eye. This eyelid is in the corner of each eye. It is persistently visible only when the cat is ill or hurt- it may be suffering from a gastrointestinal or upper respiratory illness, or damaged eye in a fight. If only one eye is showing its third eyelid, its probably due to the eye itself being damaged rather than to the cat being sick. If your cats third eye is visible, take it to the vet for examination.
Cat Third Eyelid Treatment
If your cats third eyelid is infected, red, swollen, and showing take it to the vet and your veterinarian will do a physical examination on your cat. A fecal exam (for Guardia and worms), Blood tests, radio graphs (X-rays) and an electrocardiogram may be recommended, as well as tests for the feline leukemia an (AIDS-like) virus.
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