Presbyopia lens with pupil size correction based on level of refractive error

摘要

Ophthalmic lenses for the treatment of presbyopia may be improved to enhance the visual experience of the patient. By adjusting the optical design of presbyopic lenses to account for changes in pupil size due to the degree of myopia or hyperopia, an enhanced visual experience may be achieved independent of the level of ametropia.

主权项

1. A set of lenses for treating presbyopia over a range of degrees of ametropia, the set of lenses being designed with a power profile given by
PRX(r)=P2(M1*r+M2*r2+ . . . )−SAeye*r2,where P2 is given by
P2(r)=P1(r)+Rx, RX is spherical refractive need and M is a magnification factor determined by pupil size which varies with spherical refractive need,and
P1(r)=Pnominal(r)−Rxnominal+SAeye*r2,where SAeye is the spherical aberration, r is the radial distance from the center of the lens, and Pnominal(r) is the power profile for the nominal design for the correction of an eye with a spherical refractive need of Rxnominal diopters.