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 ...

Congenital nasolacrimal duct obstruction (CNLDO) is a common condition in infants and young children, where the tear duct fails to open properly, leading to excessive tearing and potential infections.

This crust may appear hard, crusty, sticky, or wet. Blocked tear ducts—also called nasolacrimal duct obstruction (NLDO) or dacryostenosis—are another common cause of crusty eyes. Blocked tear ...

Animal technicians or veterinarians unfamiliar with overt clinical diseases in rabbits may not recognize inflammation and obstruction of the nasolacrimal duct. Furthermore, these conditions ...

it is actually a period within the natural history of the aging lacrimal system – both the production and drainage aspects – when the nasolacrimal duct is patent. During this period ...