We’ve all had that moment where we squeeze our eyelids into tiny slits in hoping the blurry paper or board in front of us will clear up and wonder, Why am I making my eyes smaller to see better? That doesn’t seem to make sense! The key is to start thinking of your eyes like a camera, a camera with aperture. When we look at something, photons are passing through our corneas and blending light rays together, which then pass through the crystalline lens and vitreous on their way to the retina. The physical building blocks of the eye, rods and cones, turn photons into electromagnetic impulses that are sent to the brain to be interpreted.