Why can't you see in the dark
If there is no light, we have no sight, why is that? To find out why we can’t see in the dark we need to know how our eyes work.
Light actually reflects or bounces off stuff, entering our eyes and through a lens in your eye which works like a lens on a camera. The lens in your eyes bends the light onto your retinas. Your retina is a layer of tissue on the back of your eyeball that contains more than 100 million light-sensitive cells.
So, if there is no light, there’s nothing for the light-sensitive cells to sense and that’s why we can’t see in the dark. But did you know cats' pupils are about 50% larger than humans? The bigger the pupil, the more light that can get in which is why cats are really good at seeing in the dark. How illuminating!
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