A method for improving ophthalmic lenses for the treatment of presbyopia, the method comprising the steps of: creating a base optical design with predetermined features for a lens for treating presbyopia; determining the power profile of the base optical design, P nominal ; and scaling the radial location of the predetermined features within the base optical design in proportion to the population average pupil size for the degree of ametropia of a target individual; wherein the step of scaling the radial location of the predetermined features within the base optical comprises: determining a magnification factor M that relates the pupil sizes at a range of luminance levels for the ametropia level of the base design to the pupil sizes for the same luminance levels for the population average at the targeted degree of ametropia; and scaling the power profile of the base design, P nominal , according to the following equations to obtain the power profile at the prescribed prescription, Rx, or degree of ametropia, P 2 r = P nominal r + SA eye * r 2 + Rx − Rx nominal , and P Rx r = P 2 M * r − SA eye * r 2 , wherein SA eye is the spherical aberration and r is the radial distance from the center of the lens and Rx nominal is the spherical refractive need of an eye corresponding to P nominal . creating a base optical design with predetermined features for a lens for treating presbyopia; determining the power profile of the base optical design, P nominal ; and scaling the radial location of the predetermined features within the base optical design in proportion to the population average pupil size for the degree of ametropia of a target individual; wherein the step of scaling the radial location of the predetermined features within the base optical comprises: determining a magnification factor M that relates the pupil sizes at a range of luminance levels for the ametropia level of the base design to the pupil sizes for the same luminance levels for the population average at the targeted degree of ametropia; and scaling the power profile of the base design, P nominal , according to the following equations to obtain the power profile at the prescribed prescription, Rx, or degree of ametropia, P 2 r = P nominal r + SA eye * r 2 + Rx − Rx nominal , and P Rx r = P 2 M * r − SA eye * r 2 , wherein SA eye is the spherical aberration and r is the radial distance from the center of the lens and Rx nominal is the spherical refractive need of an eye corresponding to P nominal . determining a magnification factor M that relates the pupil sizes at a range of luminance levels for the ametropia level of the base design to the pupil sizes for the same luminance levels for the population average at the targeted degree of ametropia; and scaling the power profile of the base design, P nominal , according to the following equations to obtain the power profile at the prescribed prescription, Rx, or degree of ametropia, P 2 r = P nominal r + SA eye * r 2 + Rx − Rx nominal , and P Rx r = P 2 M * r − SA eye * r 2 , wherein SA eye is the spherical aberration and r is the radial distance from the center of the lens and Rx nominal is the spherical refractive need of an eye corresponding to P nominal . <EOS>