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. 2023 Aug 9;2023(8):CD015091. doi: 10.1002/14651858.CD015091.pub2

Comparison 1. Anesthetic vs placebo or NSAID.

Outcome or subgroup title No. of studies No. of participants Statistical method Effect size
1.1 Change in participant‐reported ocular pain from baseline to 24 hours 5   Mean Difference (IV, Random, 95% CI) Subtotals only
1.1.1 Anesthetic vs placebo, VAS (0 to 10), post‐surgery 3 119 Mean Difference (IV, Random, 95% CI) ‐1.28 [‐1.76, ‐0.80]
1.1.2 Anesthetic vs placebo, VAS (0 to 10), post‐trauma 1 76 Mean Difference (IV, Random, 95% CI) ‐0.04 [‐0.10, 0.02]
1.1.3 Anesthetic vs NSAID, VAS (0 to 10), post‐surgery 1 74 Mean Difference (IV, Random, 95% CI) 0.82 [0.01, 1.63]
1.2 Change in participant‐reported ocular pain from baseline to 48 hours 2   Mean Difference (IV, Fixed, 95% CI) Subtotals only
1.2.1 Anesthetic vs placebo, VAS (0 to 10), post‐surgery 1 44 Mean Difference (IV, Fixed, 95% CI) 0.41 [‐0.45, 1.27]
1.2.2 Anesthetic vs placebo, VAS (0 to 10), post‐trauma 1 111 Mean Difference (IV, Fixed, 95% CI) ‐5.68 [‐6.38, ‐4.98]
1.3 Change in participant‐reported ocular pain from baseline to 72 hours 1   Mean Difference (IV, Fixed, 95% CI) Totals not selected
1.4 Proportion of post‐trauma participants without complete resolution of epithelial defects by 24 to 72 hours ‐ subgroup by tetracaine concentration 3 221 Risk Ratio (M‐H, Random, 95% CI) 1.37 [0.78, 2.42]
1.4.1 Tetracaine 0.4% 1 16 Risk Ratio (M‐H, Random, 95% CI) 2.57 [0.29, 22.93]
1.4.2 Tetracaine 0.5% 1 112 Risk Ratio (M‐H, Random, 95% CI) 1.67 [0.65, 4.27]
1.4.3 Tetracaine 1% 1 93 Risk Ratio (M‐H, Random, 95% CI) 1.12 [0.53, 2.39]
1.5 Proportion of participants without complete resolution of epithelial defects by 24 to 72 hours 4   Risk Ratio (M‐H, Random, 95% CI) Subtotals only
1.5.1 24 to 48 hours, post‐trauma 3 221 Risk Ratio (M‐H, Random, 95% CI) 1.37 [0.78, 2.42]
1.5.2 48 hours or longer, post‐surgery 1 30 Risk Ratio (M‐H, Random, 95% CI) 0.14 [0.01, 2.55]
1.6 Proportion of participants without complete resolution of epithelial defects by 24 to 72 hours ‐ subgroup by duration of use (RD) 5   Risk Difference (M‐H, Random, 95% CI) Subtotals only
1.6.1 24 to 48 hours, post‐trauma 3 221 Risk Difference (M‐H, Random, 95% CI) 0.06 [‐0.04, 0.16]
1.6.2 24 to 48 hours, post‐surgery 1 44 Risk Difference (M‐H, Random, 95% CI) 0.00 [‐0.08, 0.08]
1.6.3 48 hours or longer, post‐surgery 1 30 Risk Difference (M‐H, Random, 95% CI) ‐0.20 [‐0.42, 0.02]
1.7 Proportion of participants with complications at furthest time point 4   Risk Ratio (M‐H, Random, 95% CI) Subtotals only
1.7.1 At 1 week, post‐surgery 1 44 Risk Ratio (M‐H, Random, 95% CI) 7.00 [0.38, 128.02]
1.7.2 At 1 to 2 weeks, post‐trauma 3 242 Risk Ratio (M‐H, Random, 95% CI) 1.13 [0.23, 5.46]
1.8 Proportion of participants with complications at furthest time point (RD) ‐ subgroup by abrasion type 7 394 Risk Difference (M‐H, Random, 95% CI) 0.01 [‐0.03, 0.05]
1.8.1 Post‐surgery 3 119 Risk Difference (M‐H, Random, 95% CI) 0.03 [‐0.06, 0.11]
1.8.2 Post‐trauma 4 275 Risk Difference (M‐H, Random, 95% CI) ‐0.00 [‐0.06, 0.06]