The sun gives off a
natural form of blue light waves that appears blue turquoise in the visible
light spectrum. This has slightly lower energy and a corresponding lower
potential to cause damage. Filters in the human eye are better able to filter
out this natural source of blue light, although wearing dark glasses when out
in bright sunlight is recommended for prevention. So, what is the problem?
Technology! The closer blue light waves fall toward the Blue-Indigo end of the
visible spectrum, the more risk they pose to your eye health. These are the
type of blue light waves that emit from the LED screens of computers and
smartphones and tablets and so on. These highest energy blue light waves can
cause the most damage to your macula. With the huge increase in LED screen time
in recent decades, human eyes are being asked to handle vast amounts of
artificial blue light waves, putting a serious strain on vision.