Abstract:

Objective This study aimed to explore the clinical value of DR?dacryocystography （DR?DCG） in lacrimal duct obstructive disease， and to further explore the guiding significance of DR?DCG in preoperative evaluation. Methods The DR?DCG of 913 patients （1129 eyes） who came to Zhongshan Ophthalmic Center from January 2019 to December 2019 were collected and analyzed retrospectively. Results （1）Among the 913 cases （1129 eyes） with dacryocystography， a total of 971 eyes were clearly visualized， accounting for 86%； （2） Situation of lacrimal sac visualization： enlarged lacrimal sac in 55 eyes， normal in 438 eyes， and shrink in 478 eyes； （3） The classification of lacrimal obstruction： anterior lacrimal sac obstruction in 80 eyes， high nasolacrimal duct obstruction in 874 eyes， and low nasolacrimal duct obstruction in 97 eyes； （4） Patients with lacrimal drainage system obstruction are 826 patients， accounting for 90.5%， and there were 61 patients with lacrimal duct stenosis， accounting for 6.7%； （5）Patients who chose dacryocystorhinostomy to treat accounted for 62.3%. 902 patients were cured， accounting for 98.9%. Conclusion DR?DCG can clarify the size of the lacrimal sac， the specific site of lacrimal obstruction and its degree of dilatation， with the advantages of simplicity and intuition， and has clinical guidance value for the diagnosis and treatment of lacrimal obstructive diseases.

Key words: DR?dacryocystography, iacrimal duct obstructive disease, treatment methods, clinical application value