<prompt> Which of the following is treatment for chronic dacrocystitis?DacrocystorhinostomyDacrocystectomyMassagingSyringing  <response>: Ans. a Dacrocystorhinostomy. Ref. and Parsons 19th501, Basak, Ophthalmology, 2nd ed., 282, 336Dacrocystorhinostomy DCR: It is surgical procedure of choice in chronic dacrocystitis, in which a communication is made between lacrimal sac and middle meatus of nose.Contraindications: DNS Atrophic rhinitis Carcinoma of lacrimal gland 