What best describes how speed affects peripheral vision?

What best describes how speed affects peripheral vision?

• A. It has no effect
• B. It is strongly affected by speed of travel
• C. It is only affected by fatigue
• D. It only depends on weather

Answer: (B)

Peripheral vision becomes less effective as speed increases. When you travel fast, objects to the sides have less time to register in your brain, and the field of view you can use without moving your eyes narrows. This tunnel effect makes it harder to notice hazards approaching from the sides until they’re very close. Because safe driving relies on spotting problems early in the periphery, you need to scan more broadly and more often, especially at higher speeds. Weather or fatigue can also affect vision, but speed has the strongest, most direct impact on how much of your surroundings you can detect on the sides.

Peripheral vision becomes less effective as speed increases. When you travel fast, objects to the sides have less time to register in your brain, and the field of view you can use without moving your eyes narrows. This tunnel effect makes it harder to notice hazards approaching from the sides until they’re very close. Because safe driving relies on spotting problems early in the periphery, you need to scan more broadly and more often, especially at higher speeds. Weather or fatigue can also affect vision, but speed has the strongest, most direct impact on how much of your surroundings you can detect on the sides.