Certain factors increase your risk of developing a blocked tear duct:
Feb. 13, 2013
- Age and sex. Older women are at highest risk of developing blocked tear ducts due to age-related changes.
- Chronic eye inflammation. If your eyes are continually irritated, red and inflamed (conjunctivitis), you're at higher risk of developing a blocked tear duct.
- Previous surgery. Previous eye, eyelid, nasal or sinus surgery may have caused some scarring of the duct system, possibly resulting in a blocked tear duct later.
- Glaucoma. Anti-glaucoma medications are often used topically on the eye. If you've used these or other topical eye medications, you're at higher risk of developing a blocked tear duct.
- Previous cancer treatment. If you've had radiation or chemotherapy to treat cancer, particularly if the radiation was focused on your face or head, you're at higher risk of developing a blocked tear duct.
- Riordan-Eva P, et al. Vaughan & Asbury's General Ophthalmology. 18th ed. New York, N.Y.: The McGraw-Hill Companies; 2011. http://www.accessmedicine.com/resourceTOC.aspx?resourceID=720. Accessed Jan. 3, 2013.
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- Nasolacrimal duct obstruction. American Association for Pediatric Ophthalmology and Strabismus. http://www.aapos.org/terms/conditions/72. Accessed Jan. 4, 2013.
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