These lenses feature only one  correction for a given distance: myopia, hypermetropia and/or astigmatism. They are called single vision because they are used to see either close up or at a distance, but not at all distance
Ref. Unifocal Arizona

Progressive lenses make it possible for people with presbyopia to see clearly at all distances. Long, intermediate and close-up vision are gradually spread over the entire lens height without any visible boundary. This lens is suitable for all activities and everyday wear.
Ref. Progressive Arizona

These are for people who need near vision and distance vision: the upper part of the lens corrects distance vision and the lower area corrects near vision.
Ref. Bifocal D28

The purpose of degressive lenses is first to correct near vision and intermediate vision with degressive power towards the top of the lens. Four fixed degressions are possible from 0.75, 1.25, 1.75 or 2.25 dioptre depending on the needs.
The bottom of the lens allows the wearer to read (at 35 cm). The top of the lens allows clear intermediate vision (at 1m), on a screen for example. This lens does not correct distance vision and is therefore not suitable for driving.
Ref. Degressive Manhattan

Digital Free Form is available for single vision and progressive. It is customised to the wearer’s activity profile and the frame parameters for perfect vision at all distances and the optimisation of fields of vision. This lens provides quick adaptation thanks to high resolution vision and optimum comfort. This lens is recommended for major corrections and curved frames.
Ref. Unifocal Colorado
Ref. Progressive Colorado