Blocked tear duct (Dacryostenosis, Blocked nasolacrimal duct)

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Blocked tear duct

Alternate Names : Dacryostenosis, Blocked nasolacrimal duct

Definition

A blocked tear duct is a partial or complete blockage in the system that carries tears away from the surface of the eye into the nose.

Overview, Causes, & Risk Factors

A tube called the nasolacrimal duct normally drains tears from the surface of the eye into the nose. If this duct is blocked, the tears will build up and overflow onto the cheek, even when a person isn't crying.

In children, the duct may not be completely developed at birth. In adults, the duct can be damaged by infection, injury, or a tumor.

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Tear duct blockage

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Blocked tear duct : Definition
Blocked tear duct : Overview, Causes, & Risk Factors
Blocked tear duct : Symptoms & Signs
Blocked tear duct : Diagnosis & Tests
Blocked tear duct : Treatment
Blocked tear duct : Prognosis (Expectations)
Blocked tear duct : Complications
Blocked tear duct : Calling Your Health Care Provider
Blocked tear duct : Prevention
Blocked tear duct : Pictures & Images
Tear duct blockage

Review Date : 8/1/2008
Reviewed By : Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

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