Education for NLDO notes that dilation and irrigation may open the drainage system but recurrence is possible; what may be recommended if recurrence occurs?

Education for NLDO notes that dilation and irrigation may open the drainage system but recurrence is possible; what may be recommended if recurrence occurs?

• A. Surgery
• B. Repeat dilation and irrigation
• C. Antibiotics only
• D. Observation

Answer: (A)

When dilation and irrigation temporarily open the drainage pathway but the obstruction returns, a more definitive solution is needed. The recurrent NLDO indicates the blockage persists despite initial relief, so the best next step is a surgical procedure that creates a new drainage route from the lacrimal sac into the nasal cavity, bypassing the obstructed nasolacrimal duct. This procedure, known as dacryocystorhinostomy, can be performed externally or endoscopically and has high long-term success. Repeating dilation can be tried, but it is often not durable, and antibiotics or observation do not address the underlying blockage.

When dilation and irrigation temporarily open the drainage pathway but the obstruction returns, a more definitive solution is needed. The recurrent NLDO indicates the blockage persists despite initial relief, so the best next step is a surgical procedure that creates a new drainage route from the lacrimal sac into the nasal cavity, bypassing the obstructed nasolacrimal duct. This procedure, known as dacryocystorhinostomy, can be performed externally or endoscopically and has high long-term success. Repeating dilation can be tried, but it is often not durable, and antibiotics or observation do not address the underlying blockage.