Conjunctivitis is an inflammation of the conjunctiva--the lining of the eyelid--and is the most common eye ailment in cats. Allergies, viruses, bacteria or fungi cause conjunctivitis and it can become serious if left untreated. Detect conjunctivitis in your cat by learning the symptoms that indicate a problem.
Instructions
Notice that your cat's eye appears red and inflamed. The infection can be painful, so you may see your cat rubbing his eye frequently, either with his paw or on the carpet or furniture.
Take note of any discharge. This is caused by fluid build-up and an increase in the size of the blood vessels of the eye. It may be thick and yellow or green in color in the case of an infection. Clear and watery indicates an allergy.
See if your cat's eyelids will stick together if you hold the eye closed and release it. This is usually caused by an accumulation of white blood cells that are trying to ward off the infection.
Pay attention to your cat's squinting, or keeping her third eyelid partially over the eyeball.
Seek medical attention for your cat if you detect symptoms you feel might indicate conjunctivitis. While conjunctivitis in cats isn't life-threatening, it can cause vision problems if left untreated. It can also be a symptom of a more serious disease.