1994 Chevrolet Suburban Owner's Manual - Page 183

Night Vision No one can see as well at nightas in the daytime. But as we get older these differences increase. A 50-year-old driver may require at least twice as much light to see the same thing at night asa 20-year-old. What you do in the daytime can also affect your night vision. For example, if you spend the day in bright sunshine you are wise to wear sunglasses. Your eyes will have less trouble adjusting to night. But if you're driving, don't wear sunglasses at night.They may cut down on glare from headlights, but theyalso make a lot of things invisible. You can be temporarily blinded by approaching lights. It can take a second or two, or even several seconds, for your eyes to readjust to the dark. When you are faced with severe glare (as from a driver who doesn't lower the high beams, or a vehicle with misaimed headlights), slow down a little. Avoid staring directly into the approaching lights. Keep your windshield and all the glass on your vehicle clean - inside and on the glass. Even the inside out. Glare at night is made much worse by dirt of the glass can build up a film caused by dust. Dirty glass makes lights dazzle and flash more than clean glass would, making thepupils of your eyes contract repeatedly. Remember that your headlights light up far less of a roadway when you are in a turn or curve. Keep youreyes moving; that way, it's easier to pick out dimly lighted objects. Just as your headlights should be checkedregularly for proper aim, so should your eyes be examined regularly. Some drivers suffer from night blindness - the inability to see in dim light - and aren't even aware of it. Driving in the Rain Rain and wet roads can mean driving trouble. On a wet road you can'tstop, accelerate or turn as well because your tire-to-road traction isn't as good as on dry roads. And, if your tires don't have much treadleft, you'll get even 4-24