Product Description
prescription progressive lens have the same focal power throughout (top to bottom) and can be used to correct nearsightedness, farsightedness, astigmatism, or a combination of these disorders. Most people who wear glasses before the age of 40 have prescription progressive
lens.
CW-55 is the most common lens material used for eyeglasses, it is lighter in weight and less breakable than glass. You may tint these lenses almost any color.
Advantages
Good optics, lighter than glass
Easy to tint
Disadvantages
Not good for drill-rimless frame designs
Does not have any built-in UV protection
Available Power Ranger: