Sarah is the author of nine novels. The ninth hard cover, Above the East China Sea, was published by Alfred A. Knopf in 2014. The soft cover is being released by Penguin on April 28, 2015.
Tear over-secretion is usually caused by irritation or inflammation of the surface of the eye. This can occur for a number of reasons, including eyelash and eyelid problems or allergies. Oddly, a dry eye problem can sometimes cause watery eyes, because the eye produces excess tears to combat the irritation and dryness.
Allergies are a very common cause of excessive tear production. Certain eyelid inflammation such as blepharitis results in tearing. Any acute eye infection or inflammation results in the eye trying to lubricate itself and tears are produced in excess. Interestingly, dry eyes can result in excessive tear production.