G-15 Lens Technology: Sightings

G-15 Lens Sightings

G-15 lenses are more popular than one might realize!

G-15 Lens Technology: How Does It Work?

How Does G-15 Work?

Green and yellow light are in the center of the light spectrum at 555 nanometers and are most easily perceived by the human eye. G-15 lenses maximize the transmission of these colors, decreasing the strain of focusing and creating a cooling sensation for the eyes. These lenses broadcast colors the same way the human eye receives them, resulting in true-to-life vision and less eyestrain. No other lens technology can boast these unique scientific properties.

G-15 Lens Technology: History

A Preventative Solution: G-15 Lenses

The history of G-15 technology dates back to the 1930s when newer airplanes allowed pilots to fly higher and farther than ever before. Many U.S. Army Air Service Pilots were reporting that the glare from the sun was giving them headaches and altitude sickness during flight. In 1929, U.S. Army Air Corps Lieutenant General John MacCready asked Bausch & Lomb, a New York-based medical equipment manufacturer, to create aviation lenses that would reduce the headaches and nausea caused by the intense blue and white hues of the sky. A new kind of lens was introduced in 1936: known as G-15 Anti-Glare, they featured green lenses that cut out the glare without obscuring vision.

G-15 Lens Technology: Eyestrain

The Problem? Eye Strain

According to the Mayo Clinic, Asthenopia (eye strain) is a debilitating ophthalmological condition. When concentrating on a visually intense task for long periods of time, the ciliary muscle tightens, causing pain that manifests itself through non-specific symptoms such as sore or irritated eyes, headaches, difficulty focusing, dry or watery eyes, blurred or double vision, increased sensitivity to light, and pain in the neck, shoulders, or back.

These symptoms not only cause one to be terribly uncomfortable, but can also decrease productivity. The pain may also be intensified by lack of sleep, a time when the eyes are replenished with essential nutrients. While getting more sleep and taking regular breaks can be helpful, there is a preventative measure that can stop eye strain before it starts.

XL Fit

Head size varies from person to person and standard-sized glasses can be too small on the face or tight in the temples for those with larger heads. The solution is a wider frame that not only feels comfortable but also looks natural. Meet the Robson XL.

Independently Tested and Compliant: CSA & MCEPS Standards

All Edge Eyewear glasses are tested in independent laboratories to assure their compliance with CSA Z94.3-07 and Military Ballistic MCEPS GL-PD 10-12 standards.

What is CSA Z94.3-07?

All Canadian eye safety standards are created by the Canadian Standards Association (CSA). CCOHS enforces these standards and functions as the primary national agency in Canada for the advancement of safe and healthy workplaces and preventing work-related injury, illness, and death. Additional contributions to this standard are provided by provincial and territorial labour departments and workers' compensation boards.

What is Military MCEPS GL-PD 10-12 (Ballistic Standard)?

The current Military Combat Eye Protection Systems (MCEPS) standard is called MCEPS GL-PD 10-12, which superseded the MIL-PRF-31013 standard in April of 1996. This standard contains a series of tests that are much more aggressive than ANSI’s, such as ballistic fragmentation tests, to simulate projectiles and other dangers faced in combat.

Silver Mirror Lens

Silver Mirror lenses reflect light in bright conditions, decrease visible brightness, and reduce glare. A silver-colored mirror coating adds a reflective layer to the light-blocking properties of a smoke base tint. 13% of visible light passes through this lens color.

Polarized G-15 Silver Mirror lenses provide contrast and image definition while maintaining a neutral, true-to-life perspective. A silver mirror coating adds a reflective layer to the cooling properties of a green-colored base tint, a technology pioneered by the U. S. Air Force. The addition of a polarizing filter increases clarity by reducing glare. 11% of visible light passes through this lens color.

Available in the following frame styles: 

Regular: Brazeau, Khor, Robson, Zorge

Polarized: Khor, Robson