Test Your Brain: Can You See These Visual Illusions?

The <a href="https://www.ncbi.nlm.nih.gov/books/NBK553189/" rel="noopener ugc nofollow" target="_blank">visual system</a> is a complex apparatus through which living organisms absorb waves of light (photons) to interpret the physical world through the sense of sight. This system encompasses the eye, the retina, the optic nerve, the optic tract, and the visual cortex. The following information will pertain to normal-sighted humans. Photons in the visible spectrum (400–700 nm) enter the eye and are refracted when passing through the cornea, which is the clear layer covering the eye. The cornea aids in focusing the entering photons and protects the inner eye from the outside world. After passing through the pupil, the light is additionally refracted by the lens. The size of the pupil increases and becomes dilated when there is a limited amount of light present. Conversely, when there is a significant amount of light present, the pupil size will decrease and constrict to mitigate the amount of light entering the eye. The size of the pupil changes based on the level of light present in an environment and can also change as a result of an emotional response. <a href="https://swimone21.medium.com/test-your-brain-can-you-see-these-visual-illusions-c5c40c6d18bc">Click Here</a>