Think of them as a combination of glasses and sunglasses. Other names you may have heard of these types of lenses include transition lenses, light adaptive lenses, or variable tint lenses.

transition lenses may be a good upgrade. Activities where transition glasses are advantageous because they limit your need to carry two types of glasses include: Hiking Camping Golfing Cycling ...

A progressive lens design is like a bi- or tri-focal lens in that it corrects more than one vision problem at a time. However, these lenses have no visible lines, improving the cosmetic appearance of ...