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Understanding Cataracts



What Is A Cataract? The lenses of our eyes are used to focus our sight and are normally clear. For individuals with cataracts, the normal clarity has been replaced with a cloudiness or lack of transparency. This is often due to normal aging changes. Cataracts can also be caused by trauma, certain medications and a myriad of other diseases. The effect of clouding can range from mild, with minimum effects on vision to severe, with no ability to detect motion or shapes. When the loss of transparency is significant enough to affect your vision, it is referred to as a cataractis lens or more commonly, a cataract.
 Cataracts are very common, with over a million and a half people having a cataract surgery each year in the United States. Cataract symptoms There are a variety of types of cataracts with each having a different effect on an individual?s vision. Some types are more likely to initially affect reading and near vision, while others will affect distant vision.

In some farsighted patients a cataract may actually induce"second sight" which at least for a short term can result in a seeming improvement in a patients vision. Typical age related cataracts progress without pain and are characterized by a gradual decrease in vision. Patients may experience any of the following:

  • Decrease in color intensity
  • Glare, especially at night
  • Blurring of vision
  • Frequent change of eyeglass or contact prescription
  • Yellowing of images
  • Double vision
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