If you are not nearsighted and farsighted but only Presbyopia because of age.  This is the place for you. 

In this situation, Actually you do not need prescription progressive glasses. The standard progressive glasses are enough for you. Much fast and less expensive.

These Pregressive Reading Glasses No Power On Top 

The Designer Rimless Aviator Frames with Light Adjusting Lenses.

The Upper portions of your lenses are clear. As you lower your eyes, the magnification increases gradually allowing you to see better at different close up distances.

The lens looks like a single vision lens and does not see the dividing line of the degree change.
Not only is it beautiful, but more importantly it protects the wearer's age privacy (for reading glasses wearers), and there is no need to worry about leaking the age secret by wearing a mirror.

Light Adjusting also called Photochromic lenses are design for those who need to wear glasses all of the time. The two main purposes of photochromic lenses are to protect your eyes from UV light and to eliminate the need for a separate pair of prescription sunglasses. The lenses provide complete protection from UVA and UVB rays at all times