The images we perceive through our eyes are formed by focusing the incoming light with the eye's cornea and lens. The information is "captured" by the retina and then transmitted to our brains through the optical nerve.
Cameras emulate our eyes, but instead of cornea and lens, cameras have different types of lenses and instead of retina they have a sensor.
In both cases, the image being "captured" is a focused (and also flipped upside down) version of the combined light that is hitting the lenses.
So it seems like, to make sense of the light we perceive, we (need to) focus it in a certain way to generate the images we see.
What does the world "look like" without focusing it through our lenses? Would we be able to see anything at all?