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A retrobulbar block is a regional anesthetic nerve block in the retrobulbar space, which is the area located behind the globe of the eye.Injection of local anesthetic into this space constitutes the retrobulbar block.
The complications of retrobulbar block are globe perforation, optic nerve injury, retrobulbar haemorrhage and extraocular muscle palsy. Retrobulbar anaesthesia is contraindicated in posterior staphyloma, high axial myopia and enophthalmos. [4]
This outpatient procedure was most commonly performed under monitored anesthesia care using a retrobulbar block or peribulbar block or a combination of topical and subtenon (Tenon's capsule) anesthesia. Due to the higher risks associated with bulbar blocks, topical analgesia with mild sedation is becoming more common.
Pages in category "Regional anesthesia" The following 20 pages are in this category, out of 20 total. ... Retrobulbar block; S. Sciatic nerve block; Spinal ...
Many local anesthetics fall into two general chemical classes, amino esters (top) and amino amides (bottom). A local anesthetic (LA) is a medication that causes absence of all sensation (including pain) in a specific body part without loss of consciousness, [1] providing local anesthesia, as opposed to a general anesthetic, which eliminates all sensation in the entire body and causes ...
Spinal anaesthesia (or spinal anesthesia), also called spinal block, subarachnoid block, intradural block and intrathecal block, [1] is a form of neuraxial regional anaesthesia involving the injection of a local anaesthetic or opioid into the subarachnoid space, generally through a fine needle, usually 9 cm (3.5 in) long.
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Sometimes, for an eye with inflammation, a retrobulbar block may be given, but usually the topical or subconjunctival anesthesia is sufficient. [12] The anesthetic takes time to show the numbing effect, ranging from 1–5 minutes, depending on the chemical chosen. [12]