Excessive watering of the eye can be caused by blocked tear ducts or overproduction of tears due to conjunctivitis or injury, among other causes, according to Medical News Today. Although the condition can occur at any age, it is more often seen in babies younger than 12 months or adults aged 60 or older.
Treatment of excessive watery eyes is based on the cause of the irritation. For example, conjunctivitis is usually treated with antibiotics, while cases of conjunctivitis caused by allergies may be relieved by using antihistamines that reduce inflammation. Medical News Today warns that blocked tear ducts is a more serious problem and may require surgical correction to create a new channel for tears to flow.