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This Concept Map, created with IHMC CmapTools, has information related to: 4 Point Retrobulbar Nerve Block, 4 Point Retrobulbar Nerve Block (MO) How is it done? Alternative techniques 1.Retrobulbar 1-point nerve block 2.Peterson nerve block, 4 Point Retrobulbar Nerve Block (MO) Disadvantages 1.Injection into a blood vessel - DEATH 2.Injection into the Cerebrospinal Fluid surrounding the optic nerve - collapse, seizures, respiratory arrest following cardiac arrest 3. Risk of globe trauma 4. Risk of trauma to local tissues 5. Risk of initiation of the oculocardiac reflex, 4 Point Retrobulbar Nerve Block (MO) Adavantages Provides excellent peri-operative analgesia, 4 Point Retrobulbar Nerve Block (MO) How is it done? Procedure, 4 Point Retrobulbar Nerve Block (MO) Species Variation Cattle Horses, 4 Point Retrobulbar Nerve Block (MO) General Use Provides Analgesia for Eye Surgeries