Of course, we need. With the introduction of smart phones, tablets and other handy electronics, eyes are exposed to harmful light spectrums now more than ever. In fact, our eyes are exposed to harmful high energy blue light and UV rays more often than many of us realize. That's right, blue light is not only a threat outdoors! Even inside blue light hazard is often present. Fluorescent, CFL and LED bulbs all have a high blue spectral emission; and if you're reading this via your smart phone or computer, you're more than likely being affected by the blue light coming from your LCD screen.