1993 Buick Roadmaster Owner's Manual - Page 178

Night Vision 'No one can see aswe11 at nightas in the daytime. But as A we get older these differences increase. 50-year-old to see driver may require .at least twice as much light the same thing at night as a 20-year-old. What you doin the daytime can also affect your night in vision. For example, if you spend the day bright Your eyes will sunshine you are wise to wear sunglasses. have less trouble adjusting night. to But'if you're driving, don't wear sunglasses at night. They.may cut down on glare from headlights, but they of also make a lot things invisible that should remain yisible -such as parked cars, obstacles, pedestrians, or even train5 blocking railway crossings. mzy want to You ,you put onyour sunglasses -after have pulled into a brightly-lighted service or refreshment area. Eyes may adjust.morequickly to shie1ded.from that glare darkne,ss back on the road. But be sure to remove your sunglasses beforeyou leave the service area. on When you .follow another vehicle a freeway or highday, use low beams. True, most vehic1e.s now.have, day-night mirrors that enable the driver to reduce glare. of But outside mirrors are not this typeand.highbeams from behind can bother the driver ahead. 176