In dacrocystorhinostomy (DCR) lacrimal sacs are directly opened into:: (A) Superior nasal meatus, (B) Middle nasal meatus, (C) Inferior nasal meatus, (D) Nasolacrimal duct
Answer is B. Ans. b (Middle nasal meatus). (Ref. Basak's, Opthalmology, 2nd ed., pg, 282, 336)DACROCYSTORHINOSTOMY (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: (MH'2000)- DNS- Atrophic rhinitis- Carcinoma of lacrimal gland