Table S1. Linear regression analysis of the relationship between IHOAs and age.

Variable	Linear regression analysis-logarithm					Gender-adjusted-logarithm
	Starting value	Change per Y of age	95% CI	P value		Change per Y of age	95% CI	P value
Total IHOA	−1.784	−0.002	−0.010–0.006	0.625		−0.002	−0.010–0.006	0.654
Coma	−2.369	−0.005	−0.017–0.007	0.430		−0.005	−0.017–0.008	0.456
Trefoil	−2.640	−0.002	−0.015–0.010	0.690		−0.003	−0.015–0.010	0.658
Spherical	−3.573	−0.007	−0.024–0.011	0.440		−0.009	−0.027–0.009	0.320
SA	−3.438	−0.004	−0.016–0.008	0.505		−0.002	−0.015–0.010	0.690

IHOA, internal higher order aberration.