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What is cataract?

Cataract is a common eye condition in all areas of the world that generally affects adults 55 and older. Cataract is a clouding of the natural lens inside the eye. It is a gradual loss of transparency of the lens that causes clouding. Because of this, light becomes distorted and fails to reach the back of the retina for proper formation of the image on the retina. If not treated properly, it can lead to blindness.


Types of Cataract

There are mainly three types of Cataract:

  • A Subcapsular Cataract begins at the back of the lens. People with diabetes, high nearsightedness, retinitis pigmentosa or those taking high doses of steroids may develop a subcapsular cataract.
  • A Nuclear Cataract forms in the nucleus, the center of the lens, and is due to natural aging changes and in those suffering high myopia.
  • A Cortical Cataract, which forms in the lens cortex, gradually extends its spokes from the peripheral of the lens to the center. Many diabetics develop cortical cataracts.