How to choose driving glasses
Safe driving consists of several aspects, the key ones: high-quality visual perception of the road, road signs, traffic lights, and other road users, as well as the immediate reaction to a change in the situation. Therefore, visual acuity 24 hours a day and in any weather is essential.
HOW CAN GLASSES HELP DRIVERS?
We often find ourselves in a situation where the sun blinds our eyes, and looking at the road becomes a real challenge for us. The contrast of the picture drops, constant glare interferes with a view, forcing us to blink more often and lose our guard. At night, we get blinded by the lights of oncoming cars, lights, bright advertising billboards.
In this case, three types of glasses can come to the rescue.
TYPES OF GLASSES
And the first of them is the glasses everyone knows – sunglasses. According to the advice of experts, in daylight, the minimum value of the light transmission of the colors of the traffic light, red and green, should be 8 percent, and yellow – 6 percent. If the values are lower many warning signals will be discernible from a much shorter distance than is required for safe driving.
As a rule, most of the brands that produce sunglasses, including the ones for drivers, indicate how suitable it is for driving in the description of the model.
The second type of glasses is the most popular and useful for drivers. Those are polarized glasses. Glasses with polarized lenses can be either sun-protection or corrective glasses. Polarization in lenses absorbs and neutralizes light reflected from surfaces. Glasses with such lenses do not allow light to penetrate through the lenses, which reflects and glares from the surfaces of the road, mirrors, and neighboring cars. In addition, they increase the contrast of vision, which means that the driver has more opportunities to react to a sudden dangerous situation on the road.
However, we should remember that the use of sunglasses and glasses with a polarizing effect at night is absolutely unacceptable and even dangerous. The darkening effect of such glasses reduces visibility in the dark, leading to a severe traffic accident.
The third type of glasses is for those who spend a lot of time driving at night. These glasses are made using lenses with special coatings to reduce light scatter and increase image contrast. They are designed to take into account the difference in light perception by the eye’s retina during the day and at night. As a result, you get less tired on a long night trip, stay focused on the road and react faster when changing lanes or other active actions of the surrounding vehicles.
When choosing glasses for driving, a good fit of the frame is of particular importance.
It isn’t good if the model constantly slides onto the nose or slides off when turning the head. Therefore, it is essential for the frame to fit perfectly and for nose pads to provide good fixation.