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My kitten has unusual pupils. Is it genetic or a serious eye issue?

Updated on September 23rd, 2025

Pet's info: Cat | Mixed Breed | Male | unneutered | 4 months and 12 days old

I have a 4 month old kitten who has very different pupils from any cat I've ever owned. He came to us at about 9 weeks of age and his pupils have been like this since we met him. The pupils do not seem to constrict. What's more odd to me is that they look like roundish splotches of black ink on his blue eyes. (As if the pupil is leaking onto the color part of his eyes) I believe his mother and father were brother and sister. Could this be genetic, or something serious/lead to blindness later?

1 Answer

Most Helpful Answer

Laura Johnson VMD

Answered By Laura Johnson VMD

Veterinarian

Published on January 13th, 2018

Hi, thanks for using Petco Pet Education Center, formerly Petcoach!

Sadly the picture you attached doesn't show Ghost's eyes on my end. It has most of his head cut off. I can only guess that maybe he had uveitis before you got him and is suffering from anterior synechiae, which are fibrin strands that prevent the pupil from changing. It definitely could be genetic. As for a long term prognosis I can't be sure with out a picture. Synechiae can lead to glaucoma potentially which can affect vision.

I hope this helps in some way, please feel free to repost with a new picture.
Vote Icon2Pet Parents found this answer helpful

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