Modified Subtenon Block

In this 1-Minute Video, Drs. John Chancellor and Ahmed Sallam demonstrate their method for performing a modified subtenon block. It uses readily available supplies, including an 18-gauge needle, 0.12 forceps and a 20-gauge IV catheter with the needle removed. The technique provides local anesthesia without the risks associated with retrobulbar block, such as ocular perforation. The soft-tip catheter conforms to the globe and periocular tissues, allowing for insertion through a very small self-sealing conjunctival opening that does not require cautery or suturing.

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