70% Of Adults That Regularly Use Electronic Devices report Symptoms Of Digital Eye Strain

Blue light has a wavelength of between approximately 380nm and 500nm; making it one of the shortest, highest-energy wavelengths.

Blue light waves are the among the shortest, highest energy wavelengths in the visible light spectrum. Because they are shorter, these "Blue" or High Energy Visible (HEV) wavelengths flicker more easily than longer, weaker wavelengths. This kind of flickering creates a glare that can reduce visual contrast and affect sharpness and clarity.

This flickering and glaring may be one of the reasons for eyestrain, headaches, physical and mental fatigue caused by many hours sitting in front of a computer screen or other electronic device.

Our eyes' natural filters do not provide sufficient protection against blue light rays from the sun, let alone the blue light emanating from these devices or from blue light emitted from fluorescent-light tubes. Prolonged exposure to blue light may cause retinal damage, which can lead to loss of vision.

We work hard to block harmful blue light and let the beneficial blue light pass

Blue light is further categorized into these (high-energy to low-energy) subgroups:

Violet light (roughly 380-410 nm)

Blue-violet light (roughly 410-455 nm)

Blue-turquoise light (roughly 455-500 nm)

Because of their higher energy, violet and blue-violet rays are more likely to damaging to the eye. For this reason, these rays (380-455 nm) also are called "harmful blue light."

Blue-turquoise light rays, on the other hand, have less energy and appear to help maintain a healthy sleep cycle. For this reason, these rays (455-500 nm) are sometimes called "beneficial blue light.“

This is an extremely important feature you should ensure is included in your computer glasses, as the peak wavelength of blue light being emitted by digital devices is 455nm. In other words, for computer glasses to be effective, they need to be filtering this exact wavelength of blue light.