IOPs of a subset (see Table 1) of male (A) and female (B) mice used in this study.

<p>Average IOP of male mice was not significantly different between the 3 genotypes (<i>p>0</i>.<i>09</i>, ANCOVA). In contrast, female C1qa -/- and C1qa +/- mice had higher IOPs than their C1qa +/+ littermates (<i>p<0</i>.<i>000001</i>, ANCOVA). Error bars represent standard errors of mean at each age.