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What causes my eyes to constantly tear?

Tearing is a very common complaint and is often difficult to solve because there are so many different causes. Any type of ocular surface irritation can cause tearing such as blepharitis, allergy or even dry eyes. Eyelid laxity and/or other malposition of the eyelid resulting from age or other causes such as Bell's palsy is another cause. Tear duct obstruction is another common cause and this can be diagnosed by an in office test. In some cases, special radiographic tests, such as dacrycstography, are used to follow the flow of tears through the system and to determine if there is functional blockage. I would suggest you see an EyeMD who will first evaluate the ocular surface and treat any abnormalities and then examine the tear duct drainage system for functional blockage. 

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.