Figure 1From: Efficacy of sub-Tenon's block using an equal volume of local anaesthetic administered either as a single or as divided doses. A randomised clinical trial 95% Confidence Intervals of Mean Intraocular Pressure (mm Water) at Pre and Post Injection by Group. No statistical significance was observed between groups in pre and post injection IOP, although there was statistically significant difference in each group for pre and post IOP.Back to article page