Optical illusions have been fascinating to us, testing our eyes and observing ability. Optical illusions are these brain-twisting riddles that fool our minds and lead us to believe otherwise of what we see. From concealed objects to twisted angles, optical illusions test our minds and refine our observing abilities to detect more subtle details. If you enjoy testing your observing ability, we have a challenge for you. Optical illusions have been fascinating to us, testing our eyes and observing ability. Optical illusions are these brain-twisting riddles that fool our minds and lead us to believe otherwise of what we see. From concealed objects to twisted angles, optical illusions test our minds and refine our observing abilities to detect more subtle details. If you enjoy testing your observing ability, we have a challenge for you. Health and Fitness, Health Tips, Exercises & Workout Tips, Diet & Wellness | Times of India Lifestyle