Patent ID: 8356896

Claim:
A computer-implemented method for specifying or determining the spatial position of a distance and/or a near reference point of a progressive spectacle lens for correction of a visual defect of a spectacle wearer, comprising the following steps: obtaining individual data of the spectacle wearer comprising data relating to the preferences or the weighting of the distance, near and/or progression zone; and determining or calculating the individual vertical and/or the horizontal position of the distance and/or the near reference point depending on the obtained individual data of the spectacle wearer, wherein for the vertical distance y BF of the distance reference point from a centration or fitting point of the spectacle lens, it follows that y BF =4−4 *G F /33.33 [mm] for 0 ≦G F <33 and y BF =0−4*( G F −33.33)/66.66 [mm] for 33 ≦G F ≦100; and/or for the vertical distance y BN of the near reference point from the centration or fitting point, it follows that y BN =−20+2*2 G N /33 [mm] for 0 ≦G N <33 and y BN =−18+5*( G N −33.33)/66.66 [mm] for 33 ≦G N ≦100; wherein G F designates the weighting of the distance zone and G N designates the weighting of the near zone.