To provide a progressive multi-focal ophthalmologic lens where the relation between progression of the spherical aberration of eyeballs due to aging and a refraction abnormality is taken into consideration.
In this multi-focal ophthalmologic lens 11, the visual profile (unit: diopter) of the lens as a function of height (k) (unit: mm) on an axis A of the lens and the addition (Add) corresponding to the degree of presbyopia of a user is defined by P(h)=f(PVL, Add, h) +C(Add, PVL)h2+B(Add,PVL) where PVL, (f), C(Add, PVL), and B(Add, PVL) are the vision (unit: diopter) required for far sight, a function of evolution between near vision and far vision, a spherical aberration correction coefficient determined by the addition and the far vision, and a vision correction coefficient determined by the spherical aberration coefficient. respectively.
CHATEAU NICOLAS