Exercise-- for your Eyes and Brain-- both.

The optical illusions and visual effects can have a strong effect on emotional and physical states of the human beings. 

An optical illusion or visual illusion appear when our brain misunderstands the visual stimulus, which has taken into by our eyes. It is happens when the visual effects on the eyes and brain have a specific brightness, oscillation frequencies, color, movement etc .

Strength of an visual illusion and effects relies on the perception of the illusion by visual sensory interactions with brain. Our brain is looking for ways to maintain or restore a balanced state.

Light affects the brain through the eyes. Our eyes charge and energize our brain and nervous system. The light coming in through the eyes can augment the function of the nervous and vision system and brain.  

the visual illusions work in two ways 

Firstly, it is training the muscles in the eye.

Secondly, it is training and energy massage for various areas of the brain. 

Stare at any following animation for about a minute.Do not exceed more than 2- 3 visuals at a time .Practice once or twice a day.