Diagnosis Clinical tests for testing tear drainage are as follows: Dilatation & Irrigation (syringing), Johne’s dye test, Schirmer’s test, dacryocystogram and lacrimal scintillogram.

A retrospective 3-year review. Inclusion: patients having DSG for epiphora with delayed tear clearance, lacrimal system patency on syringing, and no visible external cause for watering.

Concepts in Lacrimal Dynamics and a Practical Course of Treatment Geoffrey E Rose; David H Verity Disclosures Expert Rev Ophthalmol. 2011;6 (6):603-610.

Introduction The lacrimal drainage system is made up of a succession of rivers, holes and lakes. First are the palpebral rivers, which run along the palpebral margins. These superficial rivers end ...

An enzyme-linked immunosorbent assay was used to measure the effect of various infectious bronchitis virus (IBV) (strain H-120) vaccine doses and routes of immunization on specific lacrimal and serum ...

Functional nasolacrimal duct obstruction (FNLDO) is a diagnosis often given to patients presenting with epiphora, but in whom there is no clinically apparent abnormality of the eyelid and lacrimal ...