20/20 Vision Review
What does it mean to have 20/20 vision?
People with 20/20 vision have normal vision. This does not mean that your vision is perfect, but you can see an object clearly at a distance of 20 feet – the same distance other people with normal vision can clearly see the object. 20/20 vision describes visual acuity, or the sharpness of vision at 20 feet from an object.