How the Eye Works The eye works like a very elegant biological camera. Light from the outside world is focused by the combined effect of the cornea and the lens.
 View with Normal Vision: Clear Far and Near ©2002 Robert Meyers Studio | In an eye with no need for distance prescription, light is brought into sharp focus exactly on the retina. Scroll over any term in the left pane above, and the corresponding part of the eye highlights yellow in the right pane. The reverse works too: Point to a part of the eye in the right pane and the corresponding term is highlighted. To understand nearsightedness, farsightedness and astigmatism, and how they can be corrected, click the links here or the tabs at the top above the diagram. Continue with close focus & reading, and measuring Vision & Prescription. |