Is Retrobulbar injection painful?
We do not report any other significant complication during or after the procedure. At the end of the 1st week after injection, 6 out of 7 (85.7%) patients were pain free and did not required supportive analgesics.
What is Retrobulbar injection?
Retrobulbar block is type of regional anesthetic nerve block used in intraocular surgery. In this technique, local anesthetic is injected into the retrobulbar space, the area located behind the globe of the eye.
How do you give a retrobulbar injection?
Slowly inject 2 to 4 ml of anesthetic and remove needle. With the eye closed apply resistance to the volume injected apply pressure with gauze or (historically) a Honan balloon at 20 to 30 mmHg for 5 minutes to prevent a hemorrhage and increase diffusion of the anesthetic agent. Monitor for retrobulbar hemorrhage.
How do you give Peribulbar blocks?
Peribulbar block: the needle is inserted through the fornix below the lateral limbus after the lower fornix was exposed (by pulling the lower lid down gently). Instil one drop of topical anaesthetic eye drops. Insert the needle through the fornix below the lateral limbus.
How long does Peribulbar block last?
How long does retrobulbar block last? Depending on the type of anesthetic used, a retrobulbar block may be short-acting, lasting about 30 minutes, or long-acting, lasting about 6-8 hours.
What is the difference between Peribulbar and retrobulbar block?
Peribulbar anaesthesia is performed by injecting the anaesthetic drug in the orbit around the equator of the eye ball (globe). Retrobulbar anaesthesia is performed by injecting the anaesthetic drug in the orbit further back behind the eye ball, which is near the nerves that control eye movement and sensation.
How do you administer Peribulbar injection?
Technique of peribulbar block
Superior & inferior injections of 5 ml each are given with a 3/4 inch, 24-26G needle. Inferior injection is given at the junction of the outer one third & inner two third of the lower orbital rim. Superior injection is given usually nasally just above the medial canthus.
Where do you give Peribulbar blocks?
Peribulbar block: the needle is inserted through the fornix below the lateral limbus after the lower fornix was exposed (by pulling the lower lid down gently).
Which nerve is blocked in Peribulbar block?
Peribulbar block is one of the regional anesthesia technique that used for providing anaesthesia and akinesia in ophthalmic surgery. With a local anaesthetic agent administered into the extraconal compartment of the eye, risk of optic nerve damage is avoided. Therefore, more anaesthetic agent is needed.
How long does a Peribulbar block last?