$y=y_0+A_1\ast \left(1-\exp \left(-x/t_1\right)\right)+A_2\ast \left(1-\exp \left(-x/t_2\right)\right)$

Equation

A₁ = −525.17835 ± 281.24707

t₁ = 30.29513 ± 27.2601

A₂ = −2749.90762 ± 270.11886

t₂ = 2.72637 ± 0.627

y₀ = 3330.68748 ± 146.50026

R² = 0.96955

Water

A₁ = −531.86671 ± 269.70529

t₁ = 29.57687 ± 25.25264

A₂ = −2739.78871 ± 258.80006

t₂ = 2.66924 ± 0.59292

y₀ = 3327.15093 ± 142.5736

R² = 0.97145

Eye lens