Figure 2: Assessment of interactive effect between WNT7B and GJD2 and association with the spherical equivalent.

In Asian cohorts, the effects of GJD2 rs11073058 on the spherical equivalent were highest when the individual had the homozygous variant (AA genotype) at WNT7B rs10453441 (β=−0.54 D; 95% CI=−0.82 to −0.27 D), compared with individuals with the AG genotype (β=−0.24 D; 95% CI=−0.37 to −0.10 D; P=0.05 by z-test) or those with the GG genotype (β=−0.18 D; 95% CI=−0.32 to −0.05 D; P=0.02 by z-test). This trend was not observed in Caucasian cohorts.