What Factors Affect Your Vision?

Even though most people don't pay much attention to their eyes, having good eyesight is really something to be treasured. Have you ever felt bad for a friend or relative who needed glasses on a daily basis to function normally? Well, imagine that you two switched bodies. How much of a pain would it be to go from perfect vision to not being able to see straight every second of your life? It's a huge hassle. Unfortunately, we can't always prevent our vision from deteriorating. What we can do is

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