Watery Eyes: Causes of Excessive Tearing in One Eye

Tearing in only one eye can be caused by a blocked tear duct, infection, or localized irritation. Identifying why one eye is excessively watery is the first step toward effective relief and treatment.

Macro shot of man's eye

Causes of One Tearing Eye

Tearing from one eye occurs with a variety of conditions. Common causes include an eyeball scratch, blockage of the tear drainage system and eyelid disorders, among others.

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