1997 Oldsmobile Achieva Owner's Manual - Page 171

Night Vision No one can see as well at night as inthe daytime. But as A we get older these differences increase. 50-year-old driver may require at least twice much light to see the as same thing at night as a 20-year-old. What you do in the daytimecan 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. if you're But driving, don'twear sunglasses at night. Theymay cut down on glare from headlamps, but they also make alot of things invisible. You can be temporarily blinded by approaching headlamps. It can take asecond or two, or even several seconds, foryour eyes toreadjust to the dark. When you are faced with severe glare (as from a driver who doesn't lower the high beams, or a vehiclewith misaimed headlamps), slow down a little. Avoid staring directly into the approaching headlamps. Keep your windshield and all the glass on your vehicle clean -- inside and out. Glareat night is made much worse by dirt on the glass. Even the insideof the glass can build up a filmcaused by dust. Dirty glass makes lights dazzle and flash more than clean glasswould, making the pupils of your eyes contractrepeatedly. Remember that your headlamps light up far less of a roadway when you are in a turn or curve.Keep your eyes moving; that way, it's easier to pick out dimly lighted objects. Justas your headlamps should be checked regularly for proper aim, should your eyes so be examined regularly. Some drivers suffer from night blindness -- the inability to see in dim light -- and aren't even aware of it. 4-17