Watery Eyes - What causes them and when should you worry? 

Do your eyes keep watering even when you're not crying? Persistent watery eyes could be caused by dry eyes, allergies or blocked tear ducts. But how can you tell the difference, and when should you see a doctor? As NUH marks 40 years of eye care, Lance Alexander speaks with Dr Maryanne Chew Romero, Consultant, Department of Ophthalmology, National University Hospital and Alexandra Hospital to explore the causes of excessive tearing, warning signs you shouldn't ignore, and a minimally invasive procedure known as ELDR that can clear certain tear duct blockages without conventional surgery. Find out who is suitable for treatment, what recovery involves and whether the blockage can return.

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