Many patients can have punctal occlusion without them. You can have punctal plugs inserted in the tear duct of your lower eyelid, upper eyelid, or both eyelids. The number of plugs depends on how ...

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 ...