Causes of watery eyes in cats include: The most common cause, feline herpesvirus-1 (FHV), causes inflammation in the eyes as well as in the nose, both of which would result in watery eyes. This can ...

Cat allergies result from the body's immune response to proteins found in a cat's skin cells, urine, and saliva. Common symptoms include sneezing, itchy eyes, nasal congestion, and skin rashes.