Factors affecting the need for silicon tube implantation in cases of congenital dacriostenosis: time of delivery, type of delivery and age of operation.

Purpose: To evaluate the delivery time, type of delivery, age at the time of operation, and surgical methods applied in cases of congenital nasolacrimal duct obstruction (CNLDO).

Methods: This study retrospectively included a total of 207 eyes of 160 cases who underwent surgery for CNLDO between February 2012 and April 2021. According to their age at the time of operation, the cases were divided into 0-12, 12-24, 24-36, 36-48 and > 48 months groups.