One of my cat's pupils just got way bigger than the other, is that bad?

Just this evening I noticed that one of my cat's pupils is significantly larger than the other. She hasn't had any accidents that I know of, and she seems otherwise normal. I'm really concerned because I’ve never seen this happen before. Could this be a sign of something serious, or is it sometimes just a temporary issue?

Answer

Your concern about your cat's unequal pupils, also known as anisocoria, is understandable. While sometimes it might not be serious, this condition can indicate underlying issues that need veterinary attention.

  • Anisocoria refers to a condition where one pupil is larger than the other.
  • It can occur in cats due to various reasons including injuries, infections, or other health problems.
  • A prompt veterinary evaluation is advisable to determine the cause and appropriate action.

Uneven pupil sizes in cats can be caused by different factors, ranging from mild to more serious conditions such as trauma, neurological disorders, or eye diseases. If your cat is behaving normally, it may not be an immediate emergency, but it is important to have a veterinarian examine her to rule out any potential problems.

Book a consultation with a licensed vet at Dial A Vet for just $49 AUD if you're unsure or symptoms are getting worse.

Frequently Asked Questions

  • What could cause my cat's pupils to be different sizes?

    Causes of anisocoria in cats can include eye injury, inflammation, neurological issues, or even previous eye surgery. Infections and glaucoma are also possible reasons.

  • Is it an emergency if my cat has anisocoria but seems fine otherwise?

    While it may not be an emergency, it's important to have a vet examine your cat, as some underlying issues can develop into serious health problems if left untreated.

  • What should I do if my cat's anisocoria suddenly worsens or if she shows other symptoms?

    If this is an emergency, please seek immediate veterinary care. Sudden changes, such as worsening anisocoria or additional symptoms like lethargy or vomiting, need urgent attention.

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