Symptom score questionnaire for nasolacrimal duct obstruction in adults--a novel tool to assess the outcome after endoscopic dacryocystorhinostomy

Abstract

EN-DCR significantly improves the quality of life as measured by the GBI. The NLDO-SS correlated with the GBI and gave more information about the benefits after EN-DCR than GBI alone. The NLDO-SS proved to be an effective tool to evaluate lacrimal obstructions and EN-DCR benefits. Further studies to validate NLDO-SS are needed.