How do our eyes “get used to the dark”?
In: Biology
Your pupils, the black part in the center of your eyes get bigger, when they do this it allows more light into your eyes allowing you to see in the dark better.
Here’s another way of thinking about it:
Imagine you are in a lit room but you have a black blanket over you that doesn’t allow any light through it. You’ll then be in the dark.
Now cut a 1″ hole in the blanket and you’ll get some light, but not much. Now make the hole bigger at 4″ you’re going to have a lot more light coming through and it will be brighter.
The same happens with your eyes, your eyes are very sensitive to light which is why they need to adjust, if they let all the light in all the time it would be way to bright and you couldn’t see anything, if they never got bigger you’d never be able to see in dim lit or dark areas.
Latest Answers