Eli5, why is it harder to look at light when we look up into it rather than down into it?
In: 1
When you’re looking down, your eyes aren’t as exposed to light because they are partly shaded by your eyebrows, eyelashes, and even your own head. This natural shielding helps to limit the amount of light that enters your eyes, making it more comfortable.
However, when you’re looking up, there’s less natural shielding from your features. More light is able to enter your eyes directly, which can make it feel overwhelming or painful, especially if the light source is bright like the sun or a bright artificial light.
Latest Answers