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Why does my cat get watery eyes after playing outside? Should I worry?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Male

My cat has some watery discharge coming out of his eyes. Sometimes it's both eyes, sometimes only one. It usually happens when we let him in the house after playing outside. Whenever I see it, I apply a drop of tobramycin (idk if I should, but those are the only eye drops I have). He's acting normal, his appetite is okay, sometimes he has diarrhea when we change his food. Should I be worried? Thanks in advance

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2 Answers

Most Helpful Answer

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Answered By Ricardo Fernandez, DVM

Veterinarian, Veterinary Oncology Resident

Published on January 23rd, 2018

Thanks for using Petco Pet Education Center, formerly Petcoach! This could be due to an eye injury or conditions such as a corneal laceration, corneal ulcer, conjunctivitis, allergies, dry eye (also known as KCS), among many other conditions. Given that this seems more associated with when he has been outside, allergies seems likely. Another possibility is an upper respiratory infection. I highly recommend that you have Dexter evaluated by your veterinarian for further assessment and treatment. Further therapy would be based on the findings. Good luck and best wishes!

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    Answered By Daniel Fonza, DVM

    Veterinarian

    Published on November 23rd, 2019

    This certainly could be due to allergies and in most cases, does not cause much discomfort apart from runny eyes. This could also be an upper respiratory infection from a viral infection. I would keep an eye on this and if it continues, recommend having a veterinarian examine Nemo so that the most appropriate treatment recommendations can be made. I hope this helps!

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