Blockage of the duct that drains tears from the eye to the nose can cause the tears to overflow and run down the face. Your oculoplastic surgeon will perform a test in the office to determine where the blockage is and what surgical treatment is best for you.

Infection of the tear sac is almost always caused by nasolacrimal duct obstruction, and requires a surgery (dacryocystorhinostomy, or DCR) to relieve the obstruction.

Lacerations of the eyelid near the nose often involve the tear drainage system. When this happens, specialized repair of the tear duct is needed to prevent scarring of the duct and chronic tearing.

Infection, inflammation, trauma, radiation, and medications can cause blockage of the eyelid portion of the tear drainage ducts. Surgical correction depends on where the obstruction is, and sometimes requires the placement of a glass tube (Jones tube) from the eye to the nose.

When the canaliculus (eyelid portion of the tear duct) becomes infected, it will usually require a simple surgical procedure to open the duct and drain the infection.

Tumors of the tear drainage duct are rare and require imaging (MRI or CT scan) to diagnose. Treatment depends on the type of tumor and whether it is benign or malignant.