What is an optical illusion? Optical illusions, more appropriately known as visual illusions, involves visual deception.Due to the arrangement of images, the effect of colors, the impact of light source or other variables, a wide range of misleading visual effects can be seen.
Essay text: They built their temples so that the roof was slanted. This gave the illusion that the temple was actually standing straight. The scientific study of illusions dates back to the beginning of the nineteenth century when scientists got interested in perception.