how to tell if your tear duct is blocked?
['Excessive tearing.', 'Redness of the white part of the eye.', 'Recurrent eye infection or inflammation (pink eye)', 'Painful swelling near the inside corner of the eye.', 'Crusting of the eyelids.', 'Mucus or pus discharge from the lids and surface of the eye.', 'Blurred vision.']