Lacrimal Duct Obstruction

The blockage may occur at several levels, including the puncta, canaliculi, lacrimal sac, or nasolacrimal duct. Identifying the affected segment matters because obstruction at different sites can require different evaluations or treatments. This anatomical distinction helps clinicians interpret tear-drainage testing and determine whether a patient may benefit from probing, stenting, or dacryocystorhinostomy.

When tears cannot drain normally, they may remain within the tear-collecting system rather than moving into the nasal cavity. Retained tears can promote infection, including dacryocystitis, an infection involving the lacrimal sac. This explains why persistent watering may occur alongside irritation and why clinicians assess both drainage function and possible infectious complications.

The underlying contributors vary with age and circumstance. In infants, congenital narrowing can interfere with tear drainage, whereas adults may develop obstruction through inflammation, infection, trauma, or age-related changes. Recognizing the likely cause provides clinical context for choosing observation and massage in selected infants or considering procedures when narrowing persists.

Evaluation begins with an eye examination and tear-drainage testing, which can indicate whether tears move normally through the system. Imaging may be added when the blockage requires further localization or clarification. Together, these approaches help distinguish the likely site of obstruction and guide decisions about observation, probing, stenting, or surgical treatment.

The basic workup combines direct eye examination with testing of tear drainage. Clinicians look for findings associated with impaired flow, persistent watering, irritation, or infection, then use imaging when examination and drainage testing do not provide enough information. The resulting assessment supports a treatment plan matched to the suspected location and cause.

Observation and massage may be appropriate for selected infants when congenital narrowing is the relevant context and immediate procedural treatment is not required. This conservative approach monitors whether drainage improves while using massage as part of management. If obstruction persists or complications develop, clinicians may consider escalation to probing or another drainage-restoring procedure.

These options represent progressively different ways to address impaired drainage. Probing is used to address the blocked pathway, while stenting helps maintain a route for tear flow. Dacryocystorhinostomy is another procedure used to restore drainage, particularly when a more definitive surgical approach is needed. Selection depends on the clinical evaluation and the obstruction's circumstances.