👉 Photopia is a phenomenon observed when light travels in a straight line, without any bending or distortion. This means that no matter what direction you look at something, it will appear to be in one continuous path. In other words, if you stand on a street corner and look directly into the camera, your vision will not change its focus point. Photopia is often associated with the concept of "photopsia," which refers to the phenomenon where light appears to move faster or slower than it actually