Retrobulbar injection is given in
(Refer: AK Khurana Comprehensive Ophthalmology, 6th edition, pg no. 444) *Retrobulbar injection:- Injection in retrobulbar space inside the muscle cone *Peribulbar injection:- Injection in peribulbar/retrobulbar space outside the muscle cone *Sub-tenon injection:- Injection beneath the tenon capsule, i.e. in subtenon space. It is also called parabulbar block Retrobulbar block involves depositing local anesthetic inside the muscle cone. It aims to block the ciliary nerves, the ciliary ganglion, and cranial nerves III, IV, and VI.
Inside muscle cone
Outside muscle cone
Subtenon space
Subperiosteum
Ocular motility and squint