The most common indicator of a blocked duct is chronic wetness around the eyes. Because feline tears contain iron-rich pigments called porphyrins, they often leave behind a distinctive on the fur. Other signs include: Constant dampness or "weeping" from one or both eyes.
: For congenital issues or severe scarring, surgery may be required to create a new drainage path. cat blocked tear duct
The feline nasolacrimal system begins at the superior and inferior puncta, small openings located on the upper and lower eyelids at the medial canthus (inner corner of the eye). These puncta lead into the canaliculi, which converge to form the lacrimal sac. From the lacrimal sac, the nasolacrimal duct descends through the bony lacrimal canal and empties into the nasal vestibule. Unlike in dogs, the feline duct typically has a narrower lumen and a more tortuous course, making it potentially more susceptible to complete obstruction. The distal opening (nasal punctum) is located approximately 2–5 mm inside the nostril on the floor of the nasal vestibule. The most common indicator of a blocked duct
Note: Unilateral epiphora is more suspicious for obstruction; bilateral epiphora may be congenital or due to systemic disease. : For congenital issues or severe scarring, surgery