How does the human eye interpret optical illusion?

The lens of the eyeball focuses light back onto the retina, where photoreceptive rods and cones are affected by the wavelength of the light. Information about the light entering the eye travels through the optic nerve, where it is then interpreted by the brain. read more

An illusion is proof that you don't always see what you think you do -- because of the way your brain and your entire visual system perceive and interpret an image. Visual illusions occur due to properties of the visual areas of the brain as they receive and process information. read more

An optical illusion is something that plays tricks on your vision. Optical illusions teach us how our eyes and brain work together to see. You live in a three-dimensional world, so your brain gets clues about depth, shading, lighting, and position to help you interpret what you see. read more