Before you spend a lot of money on these expensive night shades research the issues very carefully.Many drivers suffer from problems when driving at night when the light from streetlights oncoming headlights and other light sources may reflect from the street surface and present a serious visibility problem The glare is often merely distracting but it can sometime be quite dangerous Rainy weather can make night driving even more hazardous as the wet streets and sidewalks reflect even more light than usual In addition a certain segment of the population suffers from night myopia when lack of light can cause difficulty in focusing on distant objects Motorcycle riders must wear protective lenses at all times so nightdriving lenses or lenses like those marketed by PanOptx for both day and night wear can be quite appealing to them Most of the eyewear marketed as night sunglasses features amber or yellow lenses with antireflective coating The yellow tint reduces the amount of blue light that is transmitted through the eye These lenses are actually recommended for daytime driving use in hazy or foggy conditions.Nearly every reliable source in the eyecare industry warns strongly against the wearing of sunglasses for night driving The Sunglass Association of America states Socalled nightdriving glasses are generally amber tinted eyewear meant to reduce the glare of oncoming headlights While they may make the driver feel more comfortable they also reduce the wearers visibility Many studies have shown that nightdriving lenses do not improve nightvision and some have suggested that such lenses actually impair visual performance and make it more difficult for the eyes to compensate for glare.

According to several sources yellowtinted lenses do not filter out enough light to be effective against headlight glare UV protection claims are not valid for nighttime driving as the absence of sunlight means that there is no UV light to filter out Similarly polarized lenses are not advantageous at night as nighttime glare is not polarized like daytime sunlight glare Make sure that your windscreen is clean and streakfree on both the inside and outside surfaces Particles of dust and dirt cause light waves to scatter causing a haloeffect and making glare seem worse

Make sure that any glasses that you are wearing are clean on both surfaces Lenses worn at night should be clear and should have an antireflective coating applied to the lenses as antireflective coatings can help combat internal reflections which can contribute to the halo effect and they increase the flow of light through the lens to the eye Make certain that your headlights are clean and properly aligned so that they do not create an undesirable glare in front of you Have a complete eye examination so that your ophthalmologist or optometrist can rule out cataracts or night myopia If you should have night myopia your eye care practitioner can recommend the correct prescription lenses to correct your night vision and make night driving safer for you