I got sad when I learned that my uncle has cataracts, those painless, cloudy area in the lens of the eyes that blocks the passage of light. I tried to search for more information online and its prevention. I realized that there is really no proven way to prevent cataracts. I guess we just need to watch out lifestyle and the foods that we eat. If you are diabetic, or your family has diabetes runs in your family medical history, you need to be more careful and watch your sugar level. Keep it under control. High blood sugar level causes vision to go blurry. We need to eat healthier fruits and vegetables too.