In optical illusion mind send signal whatever it interpret at
first look mind create an image by its entire surrounding image. Some time
surround image background prevents our mind to accept truth.
An optical illusion (also called a visual illusion) is an
illusion caused by the visual system and characterized by visually perceived
images that differ from objective reality. The information gathered by the eye
is processed in the brain to give a perceptive that does not tally with a physical
measurement of the stimulus source.
