Many causes of epiphora are unrelated to anatomical problems in the nasolacrimal drainage apparatus. Problems in the upper lacrimal system have often been under-recognized as a cause of epiphora.

The term functional nasolacrimal duct obstruction (FNLDO; watering with patent drainage) is misleading as it implies occluded drainage and solely nasolacrimal duct pathology. 'Normal' tear ...

Thus, any interventions performed under general anesthesia should include a detailed evaluation of the lacrimal drainage pathway to identify and treat any other causes of obstruction intraoperatively.

CNET’s expert staff reviews and rates dozens of new products and services each month, building on more than a quarter century of expertise. When it comes to something like drain cleaner, you may ...

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We put kitchen drain unblockers from popular brands including Cillit Bang, Domestos and Mr Muscle to the test on a U-bend blocked up tight with stubborn food residue and grease. We also tested the ...