Abstract: A selection aid for selecting lenses for spectacles on the basis of a plurality of customer-specific criteria contains a first disc and a second disc. The first disc has a selection area with criteria to be selected and selection recommendations and is divided into selection regions of equal size. The second disc is rotatably connected to the first disc about an axis of rotation. The second disc partly conceals the selection area and visually frees an area region of the selection area that corresponds to one of the selection regions in terms of size and shape.

Abstract: A selection aid for selecting lenses for spectacles on the basis of a plurality of customer-specific criteria contains a first disc and a second disc. The first disc has a selection area with criteria to be selected and selection recommendations and is divided into selection regions of equal size. The second disc is rotatably connected to the first disc about an axis of rotation. The second disc partly conceals the selection area and visually frees an area region of the selection area that corresponds to one of the selection regions in terms of size and shape.

Abstract: A spectacle lens having a front surface intended to be fitted away from the eye. The spectacle lens includes a substrate made from mineral glass or an organic material. The spectacle lens has selective light wavelength filter properties. The selective light wavelength filter properties include a spectral transmittance between 80% and 95% for all wavelengths in a wavelength range between 428 nm and 452 nm for a light ray entering the spectacle lens on the front surface at an angle of incidence of 0°, a spectral transmittance between 95% and 100% for all wavelengths in a wavelength range between 500 nm and 700 nm for a light ray entering the spectacle lens on the front surface with an angle of incidence of 0° and a yellowness index of no more than 10 for a standard illuminant D65 and a standard observer function of 2° (D65/2°).

Abstract: A spectacle lens having a front surface intended to be fitted away from the eye. The spectacle lens includes a substrate made from mineral glass or an organic material. The spectacle lens has selective light wavelength filter properties. The selective light wavelength filter properties include a spectral transmittance between 80% and 95% for all wavelengths in a wavelength range between 428 nm and 452 nm for a light ray entering the spectacle lens on the front surface at an angle of incidence of 0°, a spectral transmittance between 95% and 100% for all wavelengths in a wavelength range between 500 nm and 700 nm for a light ray entering the spectacle lens on the front surface with an angle of incidence of 0° and a yellowness index of no more than 10 for a standard illuminant D65 and a standard observer function of 2° (D65/2°).