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Bascom Palmer Eye Institute

About Cataracts

What are cataracts?

A cataract occurs when the lens in the eye can become cloudy and hard.. Cataracts can develop from normal aging, from an eye injury, from previous eye surgery or if you have taken certain medications. Cataracts may cause blurred vision, dulled vision, sensitivity to light and glare, and/or ghost images. If the cataract changes vision so much that it interferes with your daily life, the cataract may need to be removed. Surgery is the only way to remove a cataract. The alternative to surgery is to not have the cataract removed. If you do not have the surgery, your vision probably will not improve and may continue to get worse.

What are the different types of cataracts?

  • Age-related cataract: Most cataracts are related to aging.
  • Congenital cataract: Some babies are born with cataracts or develop them in childhood, often in both eyes. These cataracts may not affect vision. If they do, they may need to be removed.
  • Secondary cataract: Cataracts are more likely to develop in people who have certain other health problems, such as diabetes. Also, cataracts are sometimes linked to steroid use.
  • Traumatic cataract: Cataracts can develop soon after an eye injury, or years later.