Final answer:
If dazzled by another vehicle's headlights, slow down, look left towards the lane marking as a guide, and if vision is impaired, safely pull over and stop until you can see clearly again.
Step-by-step explanation:
When dazzled by another vehicle's headlights, you should slow down, look towards the left and use the white line on the right side of the road, or the lane marking as a guide. If you cannot see clearly, it is safest to pull over and stop until your vision returns to normal. Speeding up or using high beam headlights in response can increase the danger of an accident. Turning on your high beams can also blind the other driver, making the situation worse for both vehicles.
Warning: Never look directly at very bright lights, including oncoming headlights, as this can cause temporary blindness and heighten the risk of an accident.