Final answer:
Lower high beams for oncoming traffic within 500 feet to ensure road safety and prevent blinding other drivers.
Step-by-step explanation:
You should lower your high beams when an oncoming car is within 500 feet of your car. While there isn't specific information provided in the references to answer this direct question, it relates to roadway safety and visibility. When we consider the resolution of headlights, we're indirectly touching on the concept of safeness and visibility seen through a driver's perspective. Hence, the relevance of understanding resolution distances and how headlight visibility can impact decision-making on the road. Therefore, even though we understand the resolution limits of our eyes using the distance between the headlights and the pupil's diameter, we must apply rules of the road for safety, which include dimming high beams at appropriate times and distances.
When an oncoming car is within 500 feet of your car, you need to lower your high beams. This is because the bright light from high beams can dazzle the driver of the oncoming car and make it difficult for them to see.