Petco Text Logo
Petco Pet Logo
  • Two Easy Ways to Start Earning Rewards!

    rewards header
    Become a member today!
    Members-only pricing and offers, personalized care notifications, Vital Care points back on every purchase and more!
    Petco Pay LogoBecome a credit card member today!

    Earn 2X Pals Rewards points at Petco
    when you use Petco Pay!

    APPLY NOW
    Learn More About Petco Pay Benefits

Why are my cat's eyes dilated after bringing home a new kitten?

Updated on September 23, 2025

Pet's info: Cat | Maine Coon | Female | spayed | 1 year and 6 months old | 11.4 lbs

My cat Harleyquinn does not like my newly adopted kitten. Harley’s eyes always seem to be dilated ever since we brought the new kitten home. Her eyes do constrict when I check her eyes with a bright light but as soon as I take the light away they go back to being dilated. Does this mean that Harley is under stress because of the new addition to our family?

1 Answer

Most Helpful Answer

Dr. Leigh, DVM

Answered By Dr. Leigh, DVM

Veterinarian

Published on January 25, 2018

She could definietly be stressed because of the new kitten. You could try Feliway spray/diffuser and Solliquin chews and see if that helps relieve any anxiety that she is feeling.

https://www.feliway.com/us#redirected
http://www.solliquin.com/
Vote Icon1Pet Parents found this answer helpful

Smart Picks for Smart Questions

Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Share

Styled arrow button