Fig. 3

Forest plot for the meta-analysis of the outcome efficacy demonstrating statistically significant effect of polymorphisms of PTGFR (P = 0.02) and of MRP4 (P < 0.00001) on the efficacy of latanoprost and of polymorphisms of CYP450 on the efficacy of timolol (P = 0.002). The total result was statistically significant for the efficacy outcome (OR 34.80 [9.70–124.88], P < 0.00001)