<prompt> A 2 weeks old infant presents with excessive tearing in left eye, overflow of tears in the lower eyelid and frequent appearance of mucoid material for the last 1 week. The baby was delivered at home to a multigravida mother who had regular antenatal visits. There was no maternal or fetal complications perinatally. Most appropriate next step in management is:Nasolacrimal sac massagingProbing of nasolacrimal ductApplication of erythromycin dropsInstillation of steroid drops  <response>: Refer: Kanski s Clinical Ophthalmology: A Systematic Approach 8th edition pg 301 , AK KHURANA COMPREHENSIVE OPHTHALMOLOGY 6TH EDITION pg. No369CONGENITAL DACRYOCYSTITISIt is an inflammation of the lacrimal sac occurring in newborn infantsTreatmentIt depends upon the age at which the child is brought.Massage over the lacrimal sac area and topical antibiotics - up to 6-8 weeks of age, 4 times a day to be followed by instillation of antibiotic drops.Lacrimal syringing irrigation with normal saline and antibiotic solution. It should be addedto the conservative treatment if the condition is not cured up to the age of 2 months, once or twice a week.Probing of NLD with Bowmans probe. It should be performed, in case the condition is not curedby the age of 3-4 months, under general anaesthesia; may be repeated after an interval of 3-4 weeks.Intubations with silicone tube may be performed if repeated probings are failure.Dacryocystorhinostomy DCR operations: When the child is brought very late or repeated probingis a failure, after 4 years of age 