Transitions® Lenses and Blue Light
What Is Harmful Blue Light?
Blue light (also known as High Energy Visible Light) is at the far end of the visible spectrum, close to ultraviolet light, with wavelengths of between 380-460 nanometers. Harmful blue light is centered around 435nm.
Long term exposure to harmful blue light has been linked to increased risk of developing age-related macular degeneration (AMD)which is the leading cause of vision loss in adults over the age of 50.
Common Sources of Harmful Blue Light?
The amount of harmful blue light a person is exposed to varies based on several factors, including light source and viewing direction. Sunlight is by far the strongest source of blue light at least 100 times greater than artificial sources.
*Harmful blue light integrated Irradiance values (w/m2) of common artificial light sources against solar diffused light
Transitions® Adaptive Lenses
All Transitions lenses help protect against harmful blue light everywhere you need it.
Transitions® Signature®
Transitions® Signature® VII lenses block at least 20% of the harmful blue light indoors, which is up to 2 times more than standard clear lenses,* and they block over 85% outdoors.*
BLOCKS AT LEAST 20% INDOORS – UP TO 2X MORE THAN A CLEAR LENS*
BLOCKS OVER 85% OUTDOORS
*Transitions lenses block 20% to 36% of harmful blue light indoors excluding CR607 TransitionsSignature VII products which block 14% to 19%. The 2 times comparison refers to typical clear1.50 and polycarbonate hard-coated lenses.
Transitions® XTRActive®
Transitions® XTRActive® lenses help provide more protection than Transitions® Signature® VII lenses – they provide even more protection against blue light everywhere you need it by blocking at least 34% of the harmful blue light indoors, which is up to3 times more than a standard clear lens,** and 88% to 95% of harmful blue light outdoors.
BLOCKS AT LEAST 34% INDOORS – UP TO 3X MORE THAN A CLEAR LENS**
BLOCKS 88-95% OUTDOORS
**Transitions XTRActive lenses and Transitions® Vantage® lenses block 34% to 36% of harmful blue light indoors excluding CR607 Transitions XTRActive products which block 27% to 31%. The 3 times comparison refers to a typical clear 1.50 and polycarbonate hard-coated lenses.
Transitions® Vantage®
Transitions® Vantage® lenses reduce exposure to harmful blue light, blocking at least 34%** indoors and over 85% outdoors.
BLOCKS AT LEAST 34% INDOORS – UP TO 3X MORE THAN A CLEAR LENS*
BLOCKS 88-95% OUTDOORS
**Transitions® XTRActive® lenses and Transitions Vantage lenses block 34% to 36% of harmful blue light indoors excluding CR607 Transitions XTRActive products which block 27% to 31%.The 3 times comparison refers to a typical clear 1.50 and polycarbonate hard-coated lenses.