Soufia Farrukh.
Sub-tenon anesthesia.
Professional Med J Dec ;12(3):300-3.

To describe a method that seeks to improve the administration of local anaesthesia for cataract surgery avoiding the risk of potential complications associated with other methods using sharp needles. Design: Prospective study. Setting: Eye unit, Bahawal Victoria Hospital Bahawalpur. Period: Twelve months. Patients and method: The safety and efficacy of this method was demonstrated in 100 consective cases. This technique consists of small, blunt dissection of the conjunctiva, tenon’s capsule and intermuscular septum in the inferior nasal quadrant, followed by the insertion of the curved cannula that is guided to the retro bulbar space, where 2.0 to 2.5 ml of anaesthesia is injected. Results: All of the patients (100%) felt that this procedure was comfortable and painless. The operative procedure was graded with a median of no pain or discomfort for both ECCE and phaco. Akinesia, analgesia and operating conditions were assessed on a point scale. Conclusion: Sub-Tenon Anaesthesia proved to be a safe and efficient technique that offers excellent anaesthesia and akinesia and avoids a sharp needle being passed into the orbit.

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