Abstract: A method is implemented by a computer for modifying a non-dioptric parameter of an optical system including a first and a second surface. The method includes a modifying step during which the first surface and second surface are modified so as to obtain a modified optical system such that the dioptric function of the modified optical system is substantially the same as the dioptric function of the optical system.

Abstract: A computer implemented method for determining an ophthalmic lens for providing to a wearer a comfortable vision when looking at electronic displays. The method includes: a wearer near vision electronic display use determining to determine at least an electronic display the wearer intends to use in a near vision situation; a wearer intermediate vision electronic display use determining to determine at least an electronic display the wearer intends to use in an intermediate vision situation; an usage priority rank determining to determine an usage priority rank between the near vision electronic display during the wearer near vision electronic display use determining and the intermediate vision electronic display during the wearer intermediate vision electronic display use determining; an ophthalmic lens determining to determine an ophthalmic lens from the at least one near vision electronic display or the at least one intermediate vision electronic display and the usage priority rank.

Abstract: A method is implemented by a computer for modifying a non-dioptric parameter of an optical system including a first and a second surface. The method includes a modifying step during which the first surface and second surface are modified so as to obtain a modified optical system such that the dioptric function of the modified optical system is substantially the same as the dioptric function of the optical system.

Abstract: A computer implemented method for determining an ophthalmic lens for providing to a wearer a comfortable vision when looking at electronic displays. The method includes: a wearer near vision electronic display use determining to determine at least an electronic display the wearer intends to use in a near vision situation; a wearer intermediate vision electronic display use determining to determine at least an electronic display the wearer intends to use in an intermediate vision situation; an usage priority rank determining to determine an usage priority rank between the near vision electronic display during the wearer near vision electronic display use determining and the intermediate vision electronic display during the wearer intermediate vision electronic display use determining; an ophthalmic lens determining to determine an ophthalmic lens from the at least one near vision electronic display or the at least one intermediate vision electronic display and the usage priority rank.