High-energy HEV wavelengths are a part of the blue light spectrum with major everyday sources being LED TV’s, LED lights, laptops, tablets, cell phones, and desktop computers. If you or your family members are not making use of any of these sources you are in a very small minority. HEV has been scientifically linked to dry eyes, ocular aging changes, loss of sleep especially REM cycles, changes in mood, and eyestrain. HEV effects quality sleep and the loss of quality sleep can effect general health making in harder to control blood pressure and blood sugar levels to mention only two. Do not take the chance when the solution is so simple.