Author Question: When John drives his car at night, he finds that he can barely see traffic and street signs if he ... (Read 89 times)

casperchen82 · **on:** Jan 28, 2020

When John drives his car at night, he finds that he can barely see traffic and street signs if he looks directly at them. He can increase his visual sensitivity by looking at the signs:
◦ out of the side of his eye (using more cones) instead of focusing directly on them (using more rods)
◦ out of the side of his eye, because doing so focuses the image on the blind spot
◦ and squinting, which focuses the available light more precisely
◦ out of the side of his eye (using more rods) instead of focusing directly on them (using more cones)
◦ blink his eyes frequently to activate his rods

ktidd · **Reply #1 on:** Jan 28, 2020

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