Retrobulbar Anesthesia - EyeWiki
Retrobulbar anesthesia is a type of regional anesthetic nerve block in the retrobulbar space, located behind the globe of the eye. The technique was first described in 1884 by Herman Knapp.
Retrobulbar vs. peribulbar block - OpenAnesthesia
Mar 6, 2015 · Retrobulbar or peribulbar block ablates the oculocardiac reflex by blocking the afferent pathway (ciliary ganglion to ophthalmic division of trigeminal nerve), but this reflex can occur with block placement. It can also occur several hours later if …
EyeRounds.org: Retrobulbar Block, Peribulbar block and …
A peribulbar block is an alternative to the retrobulbar block and offers an effective way to provide anesthesia before ocular surgery (Br J Ophthalmol. 1997 Aug;81(8):673-6). A small button hole is made in the conjunctivae and tenons using Westcott scissors and 0.12 forceps (Figure 4).
Peribulbar versus retrobulbar anaesthesia for cataract surgery
The two main approaches in the eye are retrobulbar and peribulbar. There is debate over whether the peribulbar approach provides more effective, safer anaesthesia for cataract surgery than retrobulbar block.
Ocular Anesthesia - EyeWiki
Peribulbar. The peribulbar block requires the same preparation as the retrobulbar, including conscious sedation of the patient, local anesthesia, and antiseptic. The needle, however, is usually shorter than 25mm, and is advanced horizontally under the …
Peribulbar versus Retrobulbar Anesthesia for Ophthalmic Surgery ...
On the basis of a similar clinical efficacy of the two techniques as a result of similar spreading of the local anesthetic injected, and a potentially higher risk of introducing the needle into the muscular cone, the authors recommend replacing retrobulbar anesthesia with …
Anesthesia Alert: Topical or Block: What's Best for Cataracts?
Aug 3, 2016 · Peribulbar blocks are safer overall than retrobulbar blocks. They're less likely to cause retrobulbar hemorrhage or perforate the globe, and their potential for dural injection is lower, because the anesthetic is injected outside the …
Anesthesia for Eye Surgery - StatPearls - NCBI Bookshelf
Aug 25, 2023 · A retrobulbar hemorrhage can be sight-threatening; clinical signs like proptosis and increased IOP suggest retrobulbar hemorrhage and warrant consideration of a lateral canthotomy. Complications of peribulbar blocks are less severe and less common, increasing the popularity of this regional block.
w Peribulbar block (Pericone block) w Retrobulbar block (Intracone block) The most popular technique for regional anaesthesia in eye surgery is now a peribulbar block. This has largely replaced retrobulbar blocks and general anaesthesia for many types of eye surgery. Preparations 1. An intravenous cannula is inserted to allow
Comparison of two forms of local anaesthesia for cataract surgery
The two main approaches in the eye are retrobulbar and peribulbar. There is debate over whether the peribulbar approach provides more effective, safer anaesthesia for cataract surgery than retrobulbar block.