Why does it take so long for your eyes to adjust to the dark, but very little time to adjust to light?

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Why does it take so long for your eyes to adjust to the dark, but very little time to adjust to light?

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The cells in your eyes react to light when it hits photopigments that give electrical impulses. Rhodopsin is the night vision photochemical and light causes it to break down. Too much light and it is all gone. It takes a while for the eye to produce more.

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