Tears normally drain through small openings in the corners of the upper and lower eyelids called puncta and enter the nose through the nasolacrimal duct. Tear duct obstruction prevents tears from draining through this system normally. If the tear duct is blocked, there will be back flow of tears and discharge from the eye.
Fortunately, tear duct obstruction resolves spontaneously in a high percentage of cases. When obstruction is persistent, one or more of the following treatments may be recommended: tear duct massage, topical antibiotic eye drops, tear duct probing, balloon tear duct dilation, and/or tear duct intubation.
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