<b>Night Driving Correctors</b> <br> Rapid Eyewear's Night Correctors make for an extremely cost effective solution to enhancing your judgement of the road when driving in poor light, or at night. They are designed to fit over your existing spectacles (see below for size information). Night Correctors are supplied with Category 0 lenses, which are coated with anti-glare (anti reflective) filters; these remove the harsh glare caused by oncoming vehicle headlights and street lamps etc. <br> <br>Removing the glare allows you to see more, and better judge distances to oncoming vehicles and other objects - it also greatly reduces eye fatigue on longer journeys (it is well documented that bright light causes tiredness). <br> <br> <b>Why Aren't They Polarized?</b> <br>Polarized filters reduce glare by filtering out light that bounces off horizontal surfaces, such as a road surface. Quite literally, polarized glasses filter horizontal light. They do not work with diffused light, such as that produced by a car headlamp, or street lighting. So-called ‘night glasses’ and ‘night vision glasses’ with polarized filters will not work, and scientifically, cannot work. For this type of eyewear, an anti-reflective coating is required instead and that is what we use on Night Correctors.<br> <br> <b>Size</b> <br>Night Correctors are 5.1 inches wide x 1.8 inches high. Please measure your existing spectacles to ensure they will fit before making your purchase. <br> <br> <b>Pouch</b> <br>These sunglasses are supplied with a microfiber pouch that doubles as a cleaning cloth. <br> <br> <b>Conformity and Legal</b> <br>Night Correctors are supplied with Category 0 lenses, which are safe for driving at night. They also conform to all other aspects of ISO 12312 and Z80.3 regulations for eyewear.