This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diseases of orbit, Lids and lacrimal apparatus, Subject name: Ophthalmology
Surgery of choice for chronic acquired dacryocystitis- 
Select and explain. 
A. Dacryocystorhinostomy, B. Dacryocystectomy, C. Conjunctivo-cystorhinostomy, D. None
A: Dacryocystorhinostomy
Answer: A: Dacryocystorhinostomy 
Explanation: It should be the operation of choice as it re-establishes the lacrimal drainage Ref: ak khurana 6th edition pg no395