y = a × xb

Equation

a = 2.64257E−4 ± 1.99087E−18

b = 1.7 ± 1.47723E−15

R2 = 1

Water

a = 2.65908E−4 ± 1.49334E−18

b = 1.702 ± 1.10114E−15

R2 = 1

Eye lens