Safety on the road depends on numerous factors. The car, the work of all its systems, the experience of the driver and weather conditions are taken into account. However, the vision of the driver should also be paid special attention too. The way he or she sees the road, the surrounding space, other cars and pedestrians determine both his own and the passengers’ safety and even their lives.
Central and peripheral vision play an important role in the process. The main indicator of the central vision is its acuity. If it is low, the eyes get a distorted image. In order to compensate for this distortion, our eyes start to exert themselves. This leads to quicker fatigue in both of the eyes and the whole body as well. The attention and concentration get worse and the risk of incidents rises.
Peripheral vision determines the space that’s in focus when the eyes do not move. It’s natural that visual field has its limits. But the wider it is, the more space it can captivate. The narrowing of the field may be dangerous because the driver may not notice a passing vehicle or a pedestrian.
Most visual defects can be corrected with the help of either contact lenses or glasses – a person can decide what he likes more. But the choice of a frame is determined by certain rules. Firstly, it shouldn’t limit the visual field, that’s why a narrow rim is preferable. It’s better when sides stick to either upper or lower part of the frame but not to the middle. Such a frame will guarantee a wider angle of side vision – a good example of this is the RX range from Ray Ban sunglasses. Secondly, the frame with narrow light apertures is unsuitable for driving because it limits the visual field near the temples. Moreover, the driver should see the control panel well without a need to turn his head. But wide apertures can also be harmful especially if the lenses are powerful. This makes the glasses heavy and unpleasant to wear. Thirdly, the glasses should be comfortable. The wrong frame will make the driver nervous and cause distraction from the road, and it is the main reason for headaches. If the frame is too big, it will be constantly falling from the nose and prevent full concentration.
As for the lenses, the question of safety should be of the prior importance. Plastic lenses are more resistible from deformation. The glasses should be kept clean, as greasy spots and dust minimize the effectiveness of spectacles and enlarge the risk of incidents.
If the driver prefers darkened glasses, he should choose yellow, grey, green or brown lenses. They won’t change the spectrum, but will increase the contrast and accuracy of the objects. They will make the visibility better on a rainy day and help to relax the eyes. But their usage is allowed only in a daytime. So, make the driving more comfortable and safe. Wearing of glasses is an obligatory detail for drivers and one should not ignore the importance of clear vision.