PROGRESSIVE ADDITION LENS FOR MYOPIA CONTROL AND METHOD OF MANUFACTURING THE SAME

A progressive addition lens with simultaneous myopic defocus providing microlenses, including a power variation surface is provided. The power variation surface (23) provides at least - a designated distance portion (1) located in an upper section of the progressive addition lens (19) adapted to distance vision, and a fitting cross (17); - a designated near portion (3) located in a lower section of the progressive addition lens, the near portion (3) including a near reference point (7) having a near dioptric power adapted to near vision; and - a designated intermediate corridor (9) extending between the designated distance portion (1) and the designated near portion (3); where a number of microlenses (13) is superimposed on a surface (23) of the progressive addition lens (19). Microlenses (13) are excluded from all areas of said surface (23) which are located below a notional line (15) that extends from nasal to temporal limits of the progressive addition lens (19) at a vertical coordinate (y) above the near reference point (7) where the vertical coordinate (y) lies at a distance above the near reference point (7) with the distance being in a range between 1.5 mm and 3 mm. In addition, a method of manufacturing a progressive addition lens (19) with simultaneous myopic defocus providing microlenses (13) is defined. The method includes the steps of: - Providing a progressive addition lens (19) with a power variation surface, where the power variation surface (23) provides at least a designated distance portion (1) in the upper section of the progressive lens, a designated near portion (3) in a lower section of the progressive addition lens (19), and a designated intermediate corridor (9) extending between the designated distance portion (1) and the designated near portion (3). The distance portion (1) includes the distance reference point (5) and the fitting cross (17). The near portion (3) includes a near reference point (7). - Superimposing a number of microlenses (13) on a surface (23) of the progressive addition lens (19), where superimposition of microlenses (13) is excluded from all areas of said surface (23) which are located below a notional line (15) that extends from nasal to temporal limits of the progressive addition lens (19) at a vertical coordinate (y) above the near reference point (7) where the vertical coordinate (y) lies at a distance above the near reference point (7) with the distance being in a range between 1.5 mm and 3 mm. L'invention