Intermediate
Technical
IVT
peribulbar block
Regional anesthesia technique injecting anesthetic agents around but not within the muscle cone of the orbit.
Full Definition
A peribulbar block is a regional anesthetic technique used in ophthalmic surgery where local anesthetic is injected into the peribulbar space (outside the muscle cone) rather than within the retrobulbar space. This approach provides effective anesthesia and akinesia while reducing the risk of serious complications such as retrobulbar hemorrhage or optic nerve injury. The technique typically requires larger volumes of anesthetic than retrobulbar injection but offers improved safety margins.
Usage
Usage note: Capitalize when referring to the specific procedure; lowercase in general discussion.
In Context
- "A peribulbar block was administered with excellent anesthesia and minimal complications." — Anesthesia record
- "The surgeon requested peribulbar block rather than retrobulbar for this high-risk patient." — Preoperative planning note
Also known as
peribulbar anesthesia
Don't confuse with
retrobulbar block
sub-Tenon's block