highly significantP < 1x10 −8
All intereye correlations were highly significant ( P < 1x10 −8 ).
All intereye correlations were highly significant ( P < 1x10 −8 ).
A larger sample size would add power and help narrow the confidence intervals of the heritability estimates and establish whether those correlations with age that did not achieve significance in the present study might still represent true correlations.