The most common local anesthetic mixture is 2% lidocaine with 1:100,000 epinephrine to provide some hemeostasis. Addition of 0.5% bupivacaine will provide longer anesthesia (~6-8 hours) for lengthy procedures. The following diagrams illustrate common local nerve blocks used in ophthalmology.
Diagram 1: Common Periorbital Nerve Blocks
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEioYBdRHVrPOFkAA92BgDjTjXPS4qR-Rrsf1h92LpjFVdSFHKZKK3ybmN7yIojLOp0TBRLrJkabx2IyzatB1poixAFC0A9ltNAXMe0ny-UOttDRHgQVoqQ0MTBlf7PYW8qaRWIMu5iI7aw/s400/block1_08302004.jpg)
Diagram 2: Common Facial Nerve Blocks
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgyYNeyE8F03UCwqjssF7UpdyeOwxzNOg-Cfxj0a2rqJdMIyC12n5XdgpL5uQcjfWfF1B7WI4kso_F-7CQuKFZI8BHPn5hr98DxJ1sfuIs5F2t2qJy5LdArWFOJjQpUMyhv0wWiqPCXKvA/s400/block2_08302004.jpg)