Optical illusion occurs when our brain and eyes miscommunication with each other.
Optical illusions happen when our brain and eyes speak to each other in simple language but the interpretation gets mixed-up. For example, our eyes told the brain that something is moving but that's not what the eyes meant to say to the brain which leads to the creation of illusion.
So we can conclude that Optical illusion occurs when our brain and eyes miscommunication with each other.
Learn more about illusion here: https://brainly.com/question/26350554