Why Can't I See Clearly When the Oncoming Car's Headlights Are Too Bright?

[Allie]

Oncoming car headlights appearing too bright and impairing vision is due to the intense light stimulating the eyes, causing temporary blindness. Tips for using headlights during night driving: First, ensure the headlight beam position is properly adjusted. While driving, you may use high beams, but switch to low beams within 100 meters before encountering another vehicle, then resume high beams afterward. When driving at night, pay more attention to the lane markings ahead to make driving easier. Most drivers will switch to low beams when meeting another vehicle to avoid excessive glare. Rainy conditions are more challenging; following the vehicle ahead with low beams on makes driving easier, but maintain an appropriate following distance. Comparison of brightness among different headlights: Among automotive headlights, laser headlights are the brightest, with xenon and LED lights being moderately bright, and halogen lights being the dimmest. However, in practice, the brightness of xenon and LED lights can vary by up to 300 lumens due to differences in manufacturers and production processes, so their brightness isn't absolute. Nonetheless, it's clear that laser headlights are the brightest and halogen lights are the dimmest.