<prompt> Which of the following is treatment of choice for the treatment of a 2 month old child with CC of watering and discharge of the eye with normal anterior and posterior chamber findings:-Massage over lacrimal sacSyringing and probingBalloon catheter dilationDacryocystorhinostomy  <response>: Congenital Nasolacrimal Duct Obstruction Congenital NLDO- Membranous block of valve of Hasner Most open spontaneously by 4-6 weeks 90 resolve by 1st yr Management of NLDO Obstruction 0-6 months: Crigler massage massage over lacrimal sac 6 months - 2yrs: Syringing Probing can be repeated thrice 2 years: 3 failed probing attempts or more than 2 yr preferably 4 years of age you can go for DCR. Lacrimal scintigraphy -lacrimal scintigraphy mimicks physiological lacrimal outflow, being performed under pressure gradients 