Accuracy of the Lacrimal Syringing Test in Relation to Dacryocystography and Dacryoendoscopy.

Syringing was "substantially" in agreement with DCG+DE in detecting the degree of LP obstruction. Moreover, syringing was a sufficiently sensitive and specific test when performed by an experienced clinician. However, distinguishing between complete and partial obstructions by syringing was sometimes difficult, particularly in the common canaliculus obstruction (stenosis).