Which feature is checked to ensure proper vision during driving?

The condition of the windshield wipers is a crucial feature checked to ensure proper vision during driving. Windshield wipers play an essential role in maintaining visibility, especially in adverse weather conditions such as rain, snow, or fog. If the wipers are damaged, worn out, or not functioning correctly, they can impede a driver's ability to see the road clearly, increasing the risk of accidents.

Properly functioning windshield wipers are necessary to clear away water, dirt, or debris from the windshield, allowing the driver to have an unobstructed view of the road and surroundings. Additionally, maintaining this visibility is not just a matter of comfort but also a legal requirement, as part of the overall safety standards for vehicles on the road.

Other features like the color of the headlights or the functionality of the tail lights, while important for vehicle visibility and communication with other drivers, do not directly affect the driver's field of vision through the windshield. The placement of side mirrors is also significant for overall visibility but does not directly relate to what is seen through the windshield itself.