Did you know that the human eye can see seven million colours? Or that one in every twelve men are affected by colour blindness worldwide?
More fascinating still is the fact that the human eye has five hundred and seventy-six megapixels, compared to the iPhone six camera which has only eight megapixels.
Even for newborn babies, it takes them three months for their eyes to recognise familiar faces and they initially see the world upside down until their brains learn to interpret the images they see correctly. For more fascinating facts, have a look at our infographic below.