External versus Endoscopic Dacryocystorhinostomy for Acquired Nasolacrimal Duct Obstruction in a Tertiary Referral Center

The success rate of DCR for acquired NLDO in our group of patients was 77%, lower than reported in previous studies, with endoscopic surgery showing better results. Success rates of revision surgery were relatively low (<50%), and patients who fail the first revision are not likely to benefit from additional revisions.