Continuous Retrobulbar Block

We developed a method for establishing a continuous retrobulbar block by placing a fine catheter through a 20 gauge Atkinson retrobulbar needle in the orbital floor. The hub of the needle was modified to a funnel shape to facilitate passage of the pediatric epidural catheter. This method allowed smooth catheter insertion and continuous local anesthethic administra-tion. We used this block with light general anesthesia and obtained satisfactory results. Bradycardia and arrhythmia due to oculo-cardiac reflex were less with this method compar-ed to the cases given general anesthesia alone. We conclude that this method is useful for ophthalmic surgeries such as retinal reattachment and vitrectomy, and the retrobulbar needle we modified for pediatric epidural catheter placement appears to be a safe and effective.