Excessive tearing can result from an imbalance between tear production and tear drainage. Excess tear production often results from dry eye and/or unhealthy tear film. Insufficient drainage may be from abnormal tear duct position, narrowing or obstruction along the lacrimal pathway, starting from the eyelid and ending in the nose (the nasolacrimal duct). Non-invasive in-office evaluation can localize the problem. When a blockage is present, surgical treatments ranging from widening of the tear ducts to endoscopic nasal surgery can offer improvement.
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