Figure 3. Forest plots of the association of AOPE polymorphisms with primary open-angle glaucoma. Every study was represented by a square whose size was proportional to the weight of the study. Diamond indicated summary odds ratios (OR) with its corresponding the pseudo 95% confidence limits (95% CI). A: Forest plot for APOE polymorphisms and POAG risk in the genetic model of ε2/ε2 vs. ε3/ε3. B: Forest plot for APOE polymorphisms and POAG risk in the genetic model of ε2/ε3 vs. ε3/ε3. C: Forest plot for APOE polymorphisms and POAG risk in the genetic model of ε2/ε4 vs. ε3/ε3. D: Forest plot for APOE polymorphisms and POAG risk in the genetic model of ε3/ε4 vs. ε3/ε3.