If you are required to wear glasses for driving, what is a good practice?

Keeping a spare pair of glasses with you whenever driving is a good practice because it ensures that you have a backup option if your primary glasses become damaged or misplaced. This is particularly crucial for safe driving, as clear vision is essential for identifying road signs, other vehicles, and potential hazards on the road. By having an extra pair readily available, you reduce the risk of finding yourself unable to see clearly at a critical moment, which could lead to dangerous driving situations or accidents.

The other choices do not prioritize safety in the same way. For instance, keeping glasses on the dashboard may lead to forgetting them when you need them. Relying solely on contacts could be problematic if they are uncomfortable or if your eyes become dry; and only wearing glasses for long drives can be risky since you may encounter driving situations that require clear vision at any moment, not just during extended trips.