<prompt> In dacryocystorhinostomy DCR, Lacrimal gland opens into:Inferior meatusMiddle meatusSupreme meatusSuperior meatus  <response>: DCR - After 4 year of age- Fistula made between medial meatus lacrimal sac Dacryocystitis- 1 Congenital dacryocystitis - Mostly due to membranous occlusion at near the valve of hasner- Watering develops after 7 days of bih followed by mucopurulent discharge Regurgitation test positive Rx - Massage over the lacrimal sac 4 times a day If not able to cured by 6 months of age Probing of NLD with bowmans probe REPEATED AFTER AN INTERVAL OF 3-4 WEEKS Repeated probing fails Intubation with silicone tube silicone tube should be kept in the NLD for about six months After 4 years of age DCR 2 Adult dacrocystitis-Rx of Choice is DCR 