If light is hitting our eyes at literally all angles, how come we can see properly and not just a mess of colors?

Question

This has been bothering me for months now and google isn’t giving me answers. So, how?

In: 3

Answer 1

The fundamental way eyes or cameras work is that light passes through a narrow opening, such that light coming in at different angles will land on different spots on the retina, creating an inverted image. You can do a simple experiment yourself to see this, look up “pinhole camera”. Lenses help achieve that with a less narrow opening without blurring the image, and let you focus on different distances, but aren’t strictly necessary.