The product may be used to treat a condition that the American Academy of Ophthalmology says affects around 20 million ...

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.

You will be able to get a quick price and instant permission to reuse the content in many different ways. The lacrimal system consists of the lacrimal glands, the tear film in contact with the ...

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 ...