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Any unexplained changes in your pet’s normal activity level, temperament, or mobility warrant a call Read More
What are the four signs of Horner's syndrome in dogs?
Lennie Vandervort
2025-08-14 04:37:52
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The most common clinical signs of Horner’s syndrome are: Drooping of the eyelids on the affected side (ptosis)
The pupil of the affected eye will be constricted/small (miosis)
The affected eye often appears sunken (enophthalmos)
The third eyelid of the affected eye may appear red and raised
Brandon Dach
2025-08-07 08:55:07
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The most common clinical signs of Horner's syndrome are: the upper eyelid droops on the affected side (ptosis) the pupil of the eye on the affected is constricted (miosis) the eye on the affected side often appears sunken (enophthalmos) the third eyelid of the affected side may appear red and raised (prolapse of the third eyelid, conjunctival hyperemia)
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Florida Beahan
2025-07-30 13:02:56
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Having a constricted pupil, a droopy upper eyelid and a sunken eyeball confirms Horner's syndrome.
Damage to your dog's sympathetic nervous system, whose nerves supply the eye and facial muscles on the affected side, can result in symptoms such as:
Constricted pupil
Drooping eyelid
Sunken eyeball
Elevated third eyelid
Horner's syndrome in dogs is an eye condition characterized by a collection of symptoms rather than an official diagnosis.
Eyeball retraction, impairment of vision can also occur.