Cat Tear Ducts ^hot^ -
brachycephalic (flat-faced) cats like Persians and Himalayans, this anatomy is naturally compressed. Their tear ducts may be underdeveloped or sharply angled, leading to chronic drainage issues even in the absence of disease. 2. Common Pathologies and Causes Epiphora (Excessive Tearing) Epiphora is the most common clinical sign of tear duct dysfunction. It occurs when tears overflow onto the face because the drainage system is either blocked or overwhelmed. Obstruction: Physical blockages from inflammatory debris, foreign objects (like grass seeds), or tumors. Congenital Issues: Some kittens are born with "imperforate puncta," where the openings to the tear ducts never developed. Infection and Inflammation: Conditions like feline herpesvirus can cause scarring or swelling of the ducts. Dacryocystitis This is the inflammation of the lacrimal sac, often caused by a persistent obstruction. If left untreated, it can lead to painful swelling, purulent (pus-like) discharge, and chronic infections that may affect the cat's overall quality of life. 3. Diagnostic Procedures Veterinarians use several methods to evaluate the patency (openness) of the tear ducts: Fluorescein Dye Test: A painless green dye is placed in the eye. If the system is clear, the dye should appear at the cat's nostrils within minutes. Schirmer Tear Test: This uses small paper strips to measure tear production, helping to differentiate between excessive production and poor drainage. Nasolacrimal Flushing: Under sedation or anesthesia, a thin tube (cannula) is inserted into the punctum to flush saline through the duct. This acts as both a diagnostic tool and a treatment to clear minor blockages. 4. Treatment and Management Medical Intervention Antibiotics and Anti-inflammatories: Used if an infection or significant swelling is present. Surgical Correction: If the puncta are sealed or if there is a severe physical abnormality, surgery can create new openings for drainage. Routine Home Care For cats with chronic, non-infectious drainage (common in flat-faced breeds), daily maintenance is essential: 13 sites Disorders of the Nasal Cavity and Tear Ducts in Cats - Cat Owners Inflammation of the Tear Sac (Dacryocystitis) Inflammation of the tear sac is usually caused by obstruction of the tear sac and th... Merck Veterinary Manual Watery Eyes (Epiphora) in Cats - PetMD Aug 8, 2023 —
A rare but fascinating condition (technically gustatory lacrimation ). This occurs when nerves regenerating after facial trauma accidentally cross-wire. The cat salivates when smelling food, but the signal mistakenly triggers the tear gland instead of the salivary gland, causing the cat to cry while eating.
October 26, 2023 Prepared For: Feline Enthusiasts & Veterinary Science Students Subject: An analysis of the nasolacrimal system in Felis catus .
Tears are a sophisticated mix of water (from lacrimal glands), oil (from Meibomian glands), and mucus (from goblet cells). This cocktail keeps the eye surface moist and washes away dust.
A healthy tear duct system is invisible. When symptoms appear, they usually indicate a blockage or infection.
