Technique Anaesthetic Agent Remarks Regional/Conduction Blocks: [Retrobulbar, Peribulbar, Sub-Tenon’s] i) Lidocaine 2% procedures ii) Lidocaine 2% + bupivacaine 0.755 [or ropivacaine 1%] iii) 50%-50% mixture of lidocaine 2% and bupivacaine 0.75% For short duration For procedures lasting one hour For rapid onset and long duration procedures Topical Eye Drops: Propacaine                   Tetracaine                   Lidocaine                   Bupivacaine                  Benoxinate Viscous lidocaine gel   Intracameral A mixture of preservative free 1% lidocaine and preservative free 0.5% bupivacaine eye drops

Table 2: Typical anaesthetic agents for various conduction blocks, topical and intracameral anaesthetic techniques.