My cat's pupils are always round, never vertical. Is this normal?
Updated On September 23rd, 2025
Pet's info: Cat | Mixed Breed | Male | neutered | 8 lbs
My year old cat has big round pupils that never go vertical. Should I be concerned?
2 Answers
Most Helpful Answer
Published on May 23rd, 2019
Hello and thank you for reaching out to Petco Pet Education Center, formerly Petcoach. Dilated pupils are a sign of increased sympathetic tone, which can be due to stress or fear. I recommend trying to shine a light in Jimbob's eyes to see if the pupil's constrict appropriately. If so, I would not be concerned. If you are concerned that Jimbob may not be able to see, I would have him evaluated by a veterinarian. I hope this is helpful!
1Pet Parents found this answer helpful
Related Answers from Veterinarians
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Published on May 24th, 2019
Does it seem as if your cat can see? If so, then you probably just don’t have a dark enough room or a bright enough light to stimulate the pupillary light response. If you’re sure the cat is visual and is otherwise acting normal I would not worry about the shape of the pupils. I hope this helps. Thanks for using Petco Pet Education Center, formerly Petcoach. Best of luck.
1Pet Parents found this answer helpful
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