Efficacy of probing in congenital nasolacrimal duct obstruction in paediatric patients
A prospective observational study in a tertiary care teaching hospital Telangana India
Keywords:
Probing, Nasolacrimal duct obstruction, Eye, Pediatric PatientsAbstract
Background: Congenital nasolacrimal duct obstruction (CNLDO) is the most common disorder leading to epiphora and is usually due to failure of canalization of the nasolacrimal duct (NLD) at its distal end Objectives: To study the efficacy of probing in congenital nasolacrimal duct obstruction in 2 to 4 years of children. Methodology: Probing was carried out through the punctum by using bowman’s probe which was available in various sizes from 0.7mm to size 1.1mm. Appropriately sized probe was directed vertically first then gently directed medially until bony feeling was encountered. Firm pressure was applied to probe, attempted to advance probe beyond obstruction in NLD. Left the probe for 1 minute in that position. After the procedure topical antibiotic eye drops were advised for 2 weeks. Results: The overall success rate of probing in 2 to 4 years age group was 63.8%. In total 50 patients with 57 eyes 7 were bilateral cases in that 3 (42.9%) were treated successfully. In 43 unilateral cases 30 (69.8%) were treated successfully. The success rate of probing in right eye (70.8%) and left eye (68.2%). Conclusion: Probing can be still viable option for children aged 2years and more with CNLDO.
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