|
Product Name
|
1.56 Blue Cut Photochromic Optical Lens
|
|
Diameter
|
65/70mm
|
|
Monomer
|
NK55 (imported from Japan)
|
|
Abbe value
|
40
|
|
Specific Gravity
|
1.28
|
| Power Range | SPH: -20.00~+11.00 CYL: 0.00~-6.00 |
Photochromic Lens
Photochromic lenses are available in nearly all lens materials and designs, including high indexes , bifocal and progressive. An added benefit of photochromic lenses is that they shield your eyes from 100 percent of the sun's harmful UVA and UVB rays.
Because a person's lifetime exposure to sunlight and UV radiation has been associated with cataracts later in life, it's a good idea to consider photochromic lenses for children's eyewear as well as for eyeglasses for adults.
FAQ: