Progressive Glasses- Progressive glasses are made up of multi-focal lenses
, which provide seamless vision of many lens powers. With progressive glasses, one can use a single glass to see the distant as well as the nearby objects. This glass is used for correcting presbyopia and other disorders, as this glass has three basic ranges of vision. The near range of the progressive glasses is for seeing the nearby objects, whereas mid-range is for viewing the objects at arm's length and distance range is for seeing the far away objects.