مطالعه ميزان موفقيت عمل سونداژ مجراي اشكي در كودكان مبتلا به انسداد مادرزادي مجراي اشكي

Success rate of lacrimal duct probing in children suffering from congenital nasolacrimal duct obstruction

Congenital nasolacrimal duct obstruction is one of the most common causes of tearing in children. Course and management of this disease is controversial. Some physicians believe in medical treatment and others suggest the early probing operation. This study was conducted on 137 eyes affected with nasolacrimal duct obstruction. The affected children were assigned to receive antibiotics and massage before probing for two months. Then lacrimal duct probing was performed in these children. Success rate of probing was 74.1% in all patients. 94.4% in under six months old infants, 92% in under 12 months, 88.76% in under 18 months. This index was 51.7% in children over 18 months and 48.6% over 24 months. There was a significant correlation between decreased age and success rate of probing operation. This study showed negative correllation between the children age and success rate of probing operation. This rate in chidren under 12 months old was almost twice as the children over 24 months old. However, this operation is suitable for children under 12 months, if there has been no response to medical treatment.