Selection aid for selecting lenses for spectacles

A selection aid for selecting lenses for spectacles on a basis of a plurality of customer-specific criteria, the selection aid comprising:

• a first disc having a selection area containing a criterion to be selected and a selection recommendation, the selection area being divided into a plurality of selection regions of equal size;
• and
• a second disc being rotatably connected to the first disc about an axis of rotation, the second disc being configured to partly conceal the selection area and to visually free an area region of the selection area that corresponds in size and shape to one of the selection regions,
• wherein each selection region widens in a radial direction proceeding from the axis of rotation outward and has a central selection field, which is provided with a customer-specific criterion, and n further selection fields following the central selection field in the radial direction,
• wherein n is a natural number,
• wherein in each selection region the n further selection fields each have a plurality of partial selection fields arranged next to one another transversely with respect to the radial direction and provided in each case with the customer-specific criterion,
• wherein in each selection region a plurality of partial selection fields follows in the radial direction the central selection field or a respective further selection field and adjoins the central selection field or the respective further selection field with the exception of the partial selection field of an n-th selection field,
• wherein in each selection region a recommendation field having the selection recommendation adjoins each of the partial selection fields of the n-th selection field in the radial direction,
• wherein the second disc has n+1 questions on an outer side thereof and facing away from the first disc, and
• wherein exactly one question each is assigned to the central selection field and to each of the further selection fields of each selection region arranged in the area region and visually free from the second disc.