Late and very late initial probing for congenital nasolacrimal duct obstruction: what is the cause of failure?

<h4>Aims</h4>To find the cure rate of late (second year of age) and very late (3-5 years of age) initial probing for congenital nasolacrimal duct obstruction (CNLDO) and to identify the factors contributing to the failure rate of the probing in older children.<h4>Methods</h4>In a prospective interve... View More