Author: First Sight
Polarized sunglasses are designed with a special filter that blocks intense reflected light, thereby reducing glare. They work on a simple principle of wave polarization. Like other waveforms, light waves can oscillate in more than one direction. Polarized sunglasses only allow light waves moving in one direction to pass through, effectively reducing the intensity of light that reaches the eye.
Author: Matthew Pennel, Optician
Learn more about what blue light is, and what can you do about its effect on your eyes.