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My cats pupils are dilated to different sizes. Should I be concerned?

My cats pupils are dilated to different sizes. Should I be concerned?

Updated On May 31st, 2016

Pet's info: Cat | Mixed Breed | Male | neutered | 2 years old

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

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Yes, unequal pupil sizes can indicate trauma or neurological disease. Schedule an exam with your veterinarian today or tomorrow at the latest. Monitor for ataxia (wobbly gait), weakness, lethargy or head tilting.

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8Pet Parents found this answer helpful

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    Answered By Lindsey Edwards MVB, BSc, IVCA

    Veterinarian

    If one is fixed open and the other is very small this sounds like Horners syndrome which occurs from swelling or pressure on the nerves in the head and neck. Although the cause cannot always be identified (and some cases improve over time), trauma, abscesses and growths can all contribute to such signs and investigation and treatment can improve recovery.

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