Abstract
Aim: Comparison of peribulbar anaesthesia with sub-Tenon's anaesthesia in manual small incision cataract surgery in relation to time of onset of akinesia of extra ocular movements, pain at the time of administration, end of surgery and 1 hour after surgery and complications. Methodology: A randomized comparative study of 113 patients of which 57 patients received peribulbar anaesthesia and 56 patients received Sub-Tenon's anaesthesia. Results: The average time of onset of akinesia with sub-Tenon's anaesthesia was 2.78 ± 0.958minutes and peribulbar anaesthesia was 9.96 ± 2.141minutes. The difference was statistically significant (p = 0.00).Extraocular movements and ease of procedure between the two groups was almost the same and not statistically significant. Incidence of minor complications like chemosis and sub conjunctival haemorrhage were more in sub-Tenon's technique. Peribulbar anaesthesia ranked higher on pain score (5.12 ± 1.255) at the time of administration compared to Sub Tenon's anaesthesia (3.77 ± 1.716), the difference being statistically significant (p = 0.00). Conclusion: Sub-Tenon's anaesthesia is a safe and effective substitute for preibulbar anaesthesia in intraocular surgeries.
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