Sub-Tenon (episcleral) block with blunt cannula.
Reproduced with permission from: McGoldrick KE, Gayer SI. Anesthesia for ophthalmic surgery. In: Clinical Anesthesia, 7th Edition, Barash PG (Ed), Lippincott Williams & Wilkins, Philadelphia 2013. Copyright © 2013 Lippincott Williams & Wilkins.
www.lww.com. This illustration was republished in Clinical Anesthesia, 8th edition (2017).
