1993 Oldsmobile Silhouette Owner's Manual - Page 162

Night Vision No one can seeas well at night asin 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 as a 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. Theymay cut down on glare from headlights, but also they make a lot of things invisible that should remain visible-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 brightly-lighted service or refreshment area. Eyes shielded from that glaremay adjust If the vehicle approachingyou has its more quickly to darkness back on the high beams on, signal by flicking yours road. But be sure to remove your to high and then back to low beam. This sunglasses beforeyou leave the service is the usual signal to lower the headlight area. beams. If the other driver still doesn't You can be temporarily blindedby lower the beams, resist the temptation to approaching lights. It can take a second put your high beams on. This only or two, or even several seconds, for your makes two half-blinded drivers. eyes to readjust to the dark. When you On a freeway, use your high beams only are faced with severe glare (asfrom a in remote areas whereyou won't impair driver who doesn't lower the high approaching drivers. In some places, beams, or a vehicle with misaimed like cities, using high beams illegal. is headlights), slow down a little. Avoid When you follow another vehicle on a staring directly into the approaching freeway or highway, use low beams. lights. If thereis a lineof opposing now have day-night traffic, make occasional glances over theTrue, most vehicles mirrors that enable the driver to reduce line of headlights to make certain that of one of the vehicles isn't starting to move glare. But outside mirrors are not this type and high beams from behind can into your lane. Onceyou are past the bother the driver ahead. bright lights, give your eyesh e to t readjust before resuming speed. High Beams