Horner's syndrome is a common neurological disorder of the eye and facial muscles, caused by dysfunction of the sympathetic nervous system. The condition usually occurs suddenly and typically affects one side of the head but can be bilateral (affect both sides of the head) in rare cases. What is the sympathetic nervous system?

Feline dysautonomia is characterized by widespread degeneration of the autonomic nervous system, leading to esophageal distention and/or dysfunction, gastric and bowel distention and hypomotility, urinary bladder distention, and pupillary dysfunction.

Horner's syndrome (miosis, ptosis, enophthalmos) of the ipsilateral eye may be present with either middle or inner ear disease in dogs and cats, because the sympathetic trunk passes through the middle ear in close proximity to the petrosal bone.

Sep 15, 2023 · Horner's Syndrome is a neurological disorder affecting eyes and face muscles, causing ptosis, miosis, enophthalmos, and conjunctival hyperemia. Today, our South Florida vets detail Horner's Syndrome, how it can afeect your cat, and some treatment options.

Understand how Horner's syndrome differs from anterior uveitis in this peer-reviewed exploration of a cat presented for an elevated third eyelid and miosis.

Nov 1, 2009 · Uveitis is a common and painful ocular disease in cats that can eventually lead to blindness. Uveitis often occurs secondary to an acquired ocular or systemic disorder; however, in many instances the underlying cause is not identified despite extensive diagnostic testing.

Clinical manifestation of unilateral Horner’s syndrome in the right eye of a cat. Note the miosis, enophthalmos, and prolapsed third eyelid. Ptosis was also present, but the eyelids are being retracted in the photo to emphasize the anisocoria.

Animals with sympathetic lesions will often demonstrate miosis in accompaniment to third eyelid protrusion and enophthalmus; a condition called Horner's syndrome. 1. How to perform - touch the medial canthus of the normal eyelid and watch response. 2. How to interpret - the normal eyelid should close.

May 15, 2024 · Shrinking of the pupil (miosis): The most commonly recognized symptom is the appearance of a shrunken, or constricted, pupil. This happens because H orner’s syndrome can prevent the eye muscles from contracting and dilating as they should.

Sep 28, 2023 · The common symptoms of Horner’s Syndrome in cats include: Constricted pupil (miosis) Drooping of the upper eyelid (ptosis) Sunken appearance to eye (enophthalmos) Protrusion or redness of the third eyelid; Increased heat and colour around the head and ears of the affected side; Complications of Having Horner’s Syndrome