1993 Chevrolet Lumina Owner's Manual - Page 140

Your Driving and the Road Night Vision No one can see as well at night as in the daytime. Butas we get olderthese differences increase.A 50-year-old driver may require least twiceas at much lightto see the same thing at night as a 20-year-old. What you doin 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 trouble adjusting to less night. But if you're driving, don't wear sunglasses at night. They maycut down on glare from headlights, they also but make a lot of things invisiblethat should remainvisible-such as parked cars, obstacles, pedestrians, or even trains blocking railway crossings.You may want to put on your sunglasses after you have pulled into a brightlyI38 High Beams lighted serviceor refreshment area. Eyes shielded fromthat glare may adjust more quicklyto darkness back on the road. But be sure to remove your sunglasses before you leave service the area. You can be temporarily blinded by approaching lights.It can tale a second or two, or even several seconds, for your eyes to readjust to thedark. When you are faced with severe glare from (as a driver who doesn't lower high the beams, ora vehicle with misaimed headlights), slow down a little. Avoid staring directly into theapproaching lights. If there is a line of opposing traffic,make occasional glances over the line of headlights to make certain that one of the vehicles isn'tstarting to move into your lane. Once are past you the bright lights, give your eyes time to readjust before resuming speed. If the vehicle approaching has its you high beams on, signal by flicking yours to high and then back to low beam. This is the usual signalto lower the headlight beams. If the other driver still doesn't lowerthe beams, resistthe temptation to putyour high beamson. This only makes two half-blinded drivers. On a freeway, use your high beams only in remoteareas where you won't impair approaching drivers.In some places, like cities, using high beams is illegal. When you follow another vehicle on a freeway or highway, use low beams. True, most vehicles now have day-night mirrors that enable the driver to reduce glare. But outside mirrors are not of this type and high beams from behind can bother the driver ahead. I