Progressive lenses have three prescriptions in one pair of glasses. That allows you to do close-up work (like reading a book), middle-distance work (like checking out a website on a computer), or distance viewing (like driving) without needing to change your glasses. They're sometimes called multifocal lenses.
 
The addition of the Photochromic feature will automatically darken the lens when moving into a brighter area. Ultraviolet (UV) rays from the sun affect the molecules in the photochromic lenses so they change color.
 
Specifications: 
- 2 pieces lens (Right & Left)
- Plastic material
- Index 1.56
- Photochromic, the lens will change its shade darker when exposed to sunlight.
 
Prescription Range:
Sph +2,00 to -2,00
Add Max +3,00
Without Cylinder