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Nasolacrimal ducts allow tears to drain from each eye into the nose. Disorders of these structures can lead to either eyes that water excessively or dry eyes. They may be congenital (present at birth) or caused by infection, foreign objects in the eye, or trauma.
Inflammation or infection, within the eye or lacrimal duct, may lead to swelling that blocks the duct. Obstruction may also be caused by tumors that develop along the duct, or by foreign material lodged within the lacrimal duct. What are the clinical signs of a lacrimal duct obstruction?
22 paź 2022 · Disorders of the nasolacrimal duct system in the dog may be congenital, developmental, or acquired, and they are limited to a lack of patency or inflammation. The clinical manifestations of nasolacrimal system disease include epiphora; mucopurulent punctal, conjunctival, and nasal discharge; swelling of the ventral medial canthal region ...
Dacryocystitis (inflammation of the lacrimal sac) usually is caused by obstruction of the nasolacrimal sac and proximal nasolacrimal duct by inflammatory debris, foreign bodies, or masses pressing on the duct. In acute cases the medial lower eyelid may be swollen and painful.
Nasolacrimal disease. If the nasolacrimal system is obstructed, clinical signs include an ocular discharge varying from simple tear overflow (epiphora) to a profuse mucopurulent discharge. Signs of conjunctivitis with hyperaemia can also be present.
18 gru 2022 · Swelling around the eyes. Discharge from one or both eyes. Cloudy appearance in one or both eyes. Treatment Options for Dog Tear Duct Blockage. Fortunately, most cases can be treated without requiring surgery. Here are some treatment options that your veterinarian may recommend: Medication-Based Treatment Options:
1 gru 2022 · Dogs — Tear duct malformations and excess tear spillover are common in dogs, but dacryocystitis occurs less frequently. Tear staining is most often observed in brachycephalic (i.e., flat-faced) breeds with large eyes and tight eyelid skin that precludes normal tear drainage.
