Blue light and the health hazards of HEV, High Energy Visible light, have become available to ECPs wherever they turn. They find information in the industry news media, class credit articles, seminars, conventions and on the Internet when looking up vision health concerns. It is everywhere.
Even though the industry may be aware of the HEV health concerns, the general public may not be. This is the reason every vision health professional should make HEV part of the discussion with every patient. It is our job to educate and inform our patients of the dangers of HEV.
What is blue light?
The spectrum, of natural sunlight includes the high-energywavelength that humans are attuned to. It affects our sleep cycle, alertness, mood, cognitive functions and sense of wellbeing. Depending on the study3, there is a range in the blue portion of the light spectrum that has hazardous affects. The peak threshold of the blue color cone photoreceptors is 463mm, with a range of 400-500 nm. They can penetrate into the eye causing retinal damage, which is cumulative.