What is Peribulbar Anaesthesia?

Peribulbar block involves injections above and below the orbit, with local anesthetic deposited in the orbicularis oculi muscle. This technique blocks the ciliary nerves, as well as CN III and VI, but does not block the optic nerve (CN II).

How do you block Peribulbar?

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.

Which Anaesthesia is used in ophthalmology?

Anesthetic Agents Cocaine was the first anesthetic used for ocular anesthesia by Knapp in 1884. Currently, a combination of lidocaine and bupivacaine is reported to be the most popular, as the short acting lidocaine provides immediate anesthesia while bupivacaine provides longer duration of anesthesia.

Is general anesthesia used for cataract surgery?

Typically, patients are awake during cataract surgery. This eliminates risks associated with general anesthesia (where you are “put to sleep”) and enables Our Doctors to communicate with you during your procedure. You will be given an oral medication prior to the procedure to help you relax during your surgery.

What kind of anesthesia is used for peribulbar surgery?

Peribulbar Anesthesia Peribulbar anesthesia is performed with a retrobulbar needle and injection of up to 3 cc of a 50:50 mixture of 2% lidocaine and 0.75% bupivacaine, followed by a modified van Lint block using 3 cc of the same mixture. From: Glaucoma Surgery, 2008

Can a 74 year old man get peribulbar anesthesia?

A 74-year-old man developed orbital bleeding with chemosis, acute proptosis, and peribulbar hemorrhage after peribulbar anesthesia with 6 ml of lidocaine 2%, bupivacaine 0.75%, and 75 units of hyaluronidase without adrenaline.

What kind of anesthesia is used for cataract surgery?

Totally “bloodless” superficial procedures, such as cataract surgery, can be performed in the presence of any anticoagulant/antiplatelet agent.

How is the inferior injection of peribulbar performed?

The inferior injection is performed first. With the patient looking straight ahead, the needle is inserted through the wheal at a right-angle to the skin at the inferior orbital margin and advanced 1.0–2.0 cm along the orbital floor. The needle should be no deeper than the equator of the globe.