Vision 20
Most farsightedness can be corrected with converging glasses or contact lenses, also known as convex lenses. Thicker in the center and thinner at the edges, these lenses are designed to converge light in the center and move the point of focus to the front so that the light is focused on the retina instead of behind. Nearsightedness: Nearsighted people have difficulty seeing objects at a distance. Your vision is clear up close, sometimes up to a few inches or feet away. Beyond that distance, objects become blurred or out of focus. Nearsightedness interferes with many everyday activities, such as driving, attending classes, playing sports, and even recognizing friends at a distance. What's more, it can cause a lot of eye strain, fatigue, and headaches.