In dacrocystorhinostomy (DCR) lacrimal sacs are directly opened into:
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
Superior nasal meatus
Middle nasal meatus
Inferior nasal meatus
Nasolacrimal duct
Lacrimal Gland