| | | Number of trials | BIM (N) | TRA (N) | LAT (N) | TAF (N) | RR (95%CI) | Test for heterogeneity | Test for overall effect |
| | Conjunctival hyperemia | BIM vs. LAT | 3 | 272 | 0 | 276 | 0 | 2.556 (1.844, 3.542) | Q = 1.87, | Z = 5.63, | | BIM vs. TRA | 2 | 180 | 180 | 0 | 0 | 1.471 (0.676, 3.200) | Q = 0.22, | Z = 0.97, | | TAF vs. LAT | 2 | 0 | 0 | 174 | 175 | 1.779 (1.057, 2.995) | Q = 0.78, | Z = 2.17, |
| | Burning | BIM vs. LAT | 1 | 133 | 0 | 136 | 0 | 1.169 (0.436, 3.132) | N.A. | Z = 0.31, | | TAF vs. LAT | 2 | 0 | 0 | 174 | 175 | 0.990 (0.151, 6.477) | Q = 4.87, | Z = 001, |
| | Foreign body sensation | BIM vs. TRA | 2 | 180 | 180 | 0 | 0 | 0.325 (0.034, 3.080) | Q = 0.00, | Z = 0.98, | | TAF vs. LAT | 2 | 0 | 0 | 174 | 175 | 0.497 (0.174, 1.425) | Q = 0.63, | Z = 1.30, |
| | Hypertrichosis | BIM vs. LAT | 2 | 257 | 0 | 261 | 0 | 0.562 (0.002, 160.502) | Q = 12.79, | Z = 0.20, | | BIM vs. TRA | 1 | 131 | 135 | 0 | 0 | 5.152 (0.250, 106.293) | N.A. | Z = 1.06, |
| | Itching | BIM vs. LAT | 1 | 133 | 0 | 136 | 0 | 0.345 (0.115, 1.031) | N.A. | Z = 1.90, | | BIM vs. TRA | 2 | 180 | 180 | 0 | 0 | 1.304 (0.301, 5.641) | Q = 1.31, | Z = 0.35, | | TAF vs. LAT | 2 | 0 | 0 | 73 | 74 | 0.985 (0.349, 2.775) | Q = 0.59, | Z = 0.035, |
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