Protect you eyes while on Electronic devises. This is an upgrade to your lens selection.
Long term exposure the phones, monitors, tablets and other blue light emitting devices have both long term and short term damage to the eyes. These lenses are specially designed to block the Blue-light in the 415 nm to 455 nm wavelength range. Blocking the harmful blue light from the eyes, while ensuring that the portion of blue light needed for optimal contrast and other health benefits is allowed to pass through the lens.