Nasolacrimal duct obstructive disease is ent diseases, with congenital and
acquired two kinds big, easy for the development of acute and chronic dacryocystitis,
lacrimal duct obstruction caused by the overflow of tears, overflow pus has more and
more attention by the world, this paper summarize the domestic the clinical treatment
of nasolacrimal duct obstructive disease made a summary and puts forward the
advantages and disadvantages of each.