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Sub-Tenon block is a safe, efficient and effective technique for delivering local anaesthesia for phacoemulsification cataract surgery.1 Several studies have compared sub-Tenon block with topical anaesthesia for intraoperative pain complications, and the technique is found to be favourable.2 We are not aware of any published study that has assessed postoperative pain (beyond 30 min postoperatively) for routine phacoemulsification using sub-Tenon block.
We devised a questionnaire-based survey and asked 56 consecutive patients …
Competing interests None.
Provenance and peer review Not commissioned; not externally peer reviewed.