A recent study1 reported good results with dilation of the nasolacrimal duct in children aged 18 months or older with a commercially available balloon catheter (Lacri CATH; Atrion Medical Products, Birmingham, Ala). The author used balloons with a 2-mm diameter in children younger than 30 months and with a diameter of 3 mm in children 30 months or older. The series consisted of 76 children with a mean age of 29 months, and in 48 patients, a single catheter was used in each child to treat both sides. The article does not describe the technique used for decreasing the size of the deflated distended balloon prior to treating the second side; complications related to the use of the same catheter for the second side are not mentioned.
Vila-Coro AA, Al-Hussain H. Balloon Catheter Reuse in Children With Bilateral Nasolacrimal Duct Obstruction. Arch Ophthalmol. 2003;121(12):1804. doi:10.1001/archopht.121.12.1804-a