On a side note, circle of confusion is also related to nearsightedness, where the light from further objects concentrate before your retina, creating a blurrier image. And one way nearsighted patient does to see better is to squint their eyes, which is similar to choosing a small aperture here.
On a side note, circle of confusion is also related to nearsightedness, where the light from further objects concentrate before your retina, creating a blurrier image. And one way nearsighted patient does to see better is to squint their eyes, which is similar to choosing a small aperture here.