Dacryostenosis is an obstruction of the nasolacrimal duct and is the most common cause of epiphora and ocular discharge in newborns. Whereas most cases resolve spontaneously, invasive treatment may become necessary if symptoms persist past age 6 to 12 months. In the present case, a 9-month-old boy with persistent dacryostenosis was scheduled for lacrimal duct probing after first-line treatments...

PURPOSE To compare the nasolacrimal tissues of several species to see how closely they resemble the human and to measure nasolacrimal absorption of a substance, to show that an absorption pathway exists for substances placed in the external eye, other than directly through the cornea or conjunctiva. METHODS The nasolacrimal systems of six different vertebrates were investigated by light micro...

PURPOSE To report the prevalence of amblyopia risk factors in children with congenital nasolacrimal duct obstruction. METHODS A retrospective review of records of children with the diagnosis of congenital nasolacrimal duct obstruction (NLDO), who underwent probing from January 2009 to October 2011, was done. All of them underwent a complete ophthalmic evaluation including cycloplegic refracti...

PURPOSE To report the outcome of a step-by-step treatment approach for congenital nasolacrimal duct obstruction (CNDO). METHODS Three-hundred and fifty eyes with CNDO were included in the study. A number of treatment methods were applied systematically until a successful outcome was achieved. Listed in order from simple to more complex, the following methods were used: conservative management...

PURPOSE To assess the results of our protocol of repeated probing for the treatment of congenital nasolacrimal duct obstruction in various presentations. METHODS A total of 1600 patients (1748 eyes) with congenital dacryocystitis (850 boys, 750 girls; age range, 1 month to 48 months [mean 16.54 +/- 12.21 months]) were included. Diagnosis was confirmed by history of tearing, crusting of lids, ...

PURPOSE To determine the success rate of probing for congenital nasolacrimal duct obstruction (CNLDO) in various age groups. METHODS One hundred children (118 eyes) aged 4 to 48 months diagnosed with CNLDO were included and divided into 6 groups; group 1: infants 4-6 months of age, group 2: infants from 7 to 12 months, group 3: toddlers 13-18 months of age, group 4: older toddlers 19-24 month...