Congenital nasolacrimal duct obstruction update study (CUP study): paper I-role and outcomes of Crigler's lacrimal sac compression.

It is crucial to initiate the correct techniques of Crigler's lacrimal sac compression to achieve favourable outcomes. Age of initiation of CLSC in infancy does not appear to influence the outcomes. The resolution rate continued to be significantly high up to 1 year of age. There is a need to assess the role of CLSC beyond 12 months of age.