Spectacle lens for managing myopia by means of a dual progression control process

A spectacle lens, comprising:

• a central main viewing region with a substantially constant refractive power;
• and
• a functional region adjacent to the central main viewing region at least horizontally on both sides, the functional region having an additional functional effect compared to the central main viewing region, the additional functional effect including at least a dioptric addition power and/or a contrast reduction compared to the central main viewing region,
• wherein the additional functional effect in the functional region is achieved by a combination of at least one first surface structure characteristic and one second surface structure characteristic of the spectacle lens:
• at least one combined effect region within the functional region such that. for each viewing point of the spectacle lens within the combined effect region, the functional effect is brought about by the combination of the first and the second surface structure characteristic;
• and
• a continuous channel region extending continuously from an upper edge to a lower edge of the spectacle lens and encompassing the central main viewing region,
• wherein the combined effect region is horizontally adjacent to the continuous channel region on both sides and extends continuously from an upper to a lower edge of the spectacle lens,
• wherein a dioptric addition power of the spectacle lens caused by the second surface structure characteristic increases away from the channel region on both sides of the channel region, and
• wherein the channel region comprises a first upper and a first lower exclusive effect region, in which the addition power is created substantially by the first surface structure characteristic.