Objective: To illustrate the value of digital subtraction dacryocystography in the diagnosis of lacrimal duct obstruction.
Methods: Eighty-two normal eyes and 56 eyes with epiphora were investigated with digital subtraction dacryocystography and the dacryocystogram were studied.
Results: Lacrimal drainage system imaging by the digital subtraction dacryocystography provided reliable and accurate demonstration of lacrimal duct obstruction.
Conclusion: Digital subtraction dacryocystography is a rapid, effective and noninvasive imaging technique, and it is helpful in the diagnosis, treatment and study of lacrimal duct obstruction.