Lens element

An optical lens intended to be worn in front of an eye of a wearer having at least one prescribed refractive power Px, the optical lens comprising:

• two opposite optical faces and a plurality of contiguous optical elements, at least part of the optical elements having an optical function of not focusing an image on a retina of the eye of the wearer so as to slow down progression of abnormal refraction of the eye, wherein:
• over a pupil having at least a 4 mm diameter, one can measure in a plane corresponding to the at least one prescribed refractive power along at least one direction, a Modulation Transfer Function through the optical lens greater than 0.1 between 0 and 20 cyc/deg, wherein the pupil is located in a central vision zone;
• a majority of light rays passing through the optical lens over said pupil pass through at least one of the plurality of optical elements, and
• each of the contiguous optical element verifies that
• d
• =
• K
• ❘
• "\[LeftBracketingBar]"
• P
• ❘
• "\[RightBracketingBar]"
• with d a characteristic dimension of a contour of said optical element in mm,
• |P| the absolute value of a characteristic optical power of said optical element expressed in diopter, and
• K a number greater or equal to 0.9 and smaller than or equal to 1.7.