AIM: To study the timing of non-conservative and conservative treatment for neonatal dacryocystitis.

METHODS: Retrospective analysis of 107 eyes with neonatal dacryocystitis, which underwent lacrimal pressure washing or nasolacrimal duct probing was performed.

RESULTS: Non-conservative treatment, the successful rate within 3 months was 93.8%, 3-7 months was 92.9%, 7-12 months was 81.6%, 12-36 months was 54.6%. The difference was statistically significant(P<0.05).The successful rate of 3-7 months was higher and complications were lower.

CONCLUSION: 3-7 months is the best time for the children to perform once lacrimal washing or probing.