Anesthesiology
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Multicenter Study Clinical Trial
Ophthalmic regional anesthesia: medial canthus episcleral (sub-tenon) single injection block.
The purpose of this study was to evaluate the efficacy and safety of episcleral single-injection anesthesia in a large number of patients. ⋯ This is the first survey of a large experience in episcleral single-injection anesthesia, a form of anesthesia that does not preclude sharp-needle complications and does require training. Only one complication occurred among 2,031 patients; however, a larger number of patients is needed to definitively evaluate the safety of episcleral single-injection anesthesia.