Methods ： eigty - two normal eyes and 56 eyes with epiphora were investigated with digital subtraction dacryocystography and the dacryocystogram were studied 方法：利用数字减影泪道造影术对82只正常眼及56只溢泪眼进行检查，并对图像进行分析。
2.
Method : case report results : an 84 - year - old male patient presented with persistent epiphora of the left eye for many years and nasolacrimal duct obstruction with dacryocystitis was diagnosed 方法：病例报告结果：病例一：一名八十四岁男性因为多年的左眼溢泪前来求诊。
