<prompt> For congenital obstruction of nasolacrimal duct, probing is done at what age ?2 months6 months10 months14 months  <response>: Probing done with bowmans probe and done at the age of 6 month , some surgeon prefer to wait till the age of 9-12 months. Ref: ak khurana 6th edition pg no393 img : Bowman probe ref img 