Different organisms perceives & process things differently; bats use ultrasound to navigate through their way, frog uses different contours, and so we human also have developed a visual system. The output of the signals sent by retina is transformed and processed by a Human Brain which is the most complex system ever studied. Since, the time antediluvian, brain has been the centre of interest. It is the system that every civilization tried to study, whether it be Indians or Europeans, all have put up their best efforts to study the brain in their own styles which resulted to form different interpretations. Brain processes data to information to form a perception; the factors affecting the latter are Beliefs (or rather environmental factors) and stimulus which is the agent. The agent is the sensory organ which transmits the data to the brain. Now, this could be any sense organ like nose, tongue, touch, visual system etc. Among these, the most fascinating is visual system, not becaus...