The Green Light Problem: The toxic spike that most glasses ignore

AN OUTDATED DEFENSE

Over the last decade, the optical industry has launched a crusade against "Blue Light." The market has been flooded with glasses featuring clear lenses that promise to block this radiation. However, laboratory data and the latest patent grants confirm that this narrative has become obsolete with the evolution of LED technology.

Focusing exclusively on blue light was valid for older screens, but modern devices (OLED and high-brightness LED) emit complex radiation where blue is only half of the threat. The other half is green, and it's a risk that virtually no one talks about because it is technically difficult to solve.

SPECTRAL ANALYSIS: THE DISCOVERY OF THE GREEN PEAK

When a latest-generation smartphone is subjected to spectroradiometric analysis, its light signature does not show a smooth curve, but rather two "spikes" of high-intensity energy (HEV):

1. The Blue Peak (450 nm): The well-known oxidative agent, responsible for photochemical damage and disruption of the sleep cycle.

    

2. The Green Peak (500-550 nm): This is where the critical finding lies. To achieve screens with higher brightness and daylight visibility, manufacturers have drastically boosted emission in the green band.

Scientific evidence confirms that high-energy light does not magically stop when changing color. Radiation in the transition band to green maintains significant retinal toxicity potential. If you use standard protection that only cuts blue light (up to 420-450 nm), you are leaving a "back door" open through which 50% of direct harmful energy enters your macula.

LEGAL SUPPORT: THE DIFFERENCE OF A PATENTED TECHNOLOGY

This claim is not a marketing theory; it is a legally validated scientific fact.

Reticare's technology is not a simple tinted filter. We hold a family of international patents, granted in both Spain and the United States, which recognize our unique invention: a filtering method capable of discriminating and absorbing excess energy not only in blue, but also in the adjacent wavelengths of the green spectrum.

These official documents support that, to effectively prevent cell death in the retina, protection must be comprehensive. While other filters stop at 450nm due to technical limitations, our patent describes the critical need to cover the entire toxic spectrum emitted by modern screens.

THE TRAP OF TRANSPARENCY

Why does the rest of the industry ignore green? The answer is a mix of technical limitation and aesthetics.

To effectively block high-energy green light, a filter needs to have a specific optical density, which inevitably gives it a coloration (like Reticare's characteristic amber tone). However, much of the market prioritizes selling "completely transparent" lenses. Physics is non-negotiable: a transparent lens cannot block wavelengths above 450 nm.

The result is a false sense of security: the user believes they are protected by their new glasses, but their retina continues to be bombarded by the second energy peak (green) that passes through those lenses without any resistance.

CONCLUSION: SCIENTIFIC RIGOR

Effective visual protection against devices that emit 50 times more power than before cannot be based on trends. If the screen emits toxic peaks in blue and green, the shield must cover both fronts.

We are the only ones with the technology and patent backing to absorb that excess energy at both peaks. We don't seek for the protector to be invisible; we seek for it to be effective and fulfill its promise to preserve your vision.

To delve into the technical details of our patent and cell survival studies, visit our Scientific Evidence section.