I’m sure everyone knows what I’m talking about, but I’m genuinely curious as to what the process in our eyes and brain is, so that after a period of time we’re able to see relatively well even without much moonlight.
Primarily it’s that your pupils (the black circle in the center of your eye) dilates (expands) to let in more light. In a bright sunny day your pupils are tiny pin-pricks, at night they get much much bigger.
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