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What causes cataracts?

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Protein builds up in the lens of your eye and makes it cloudy. This keeps light from passing through clearly, making your eyesight blurry or cloudy.

Doctors don't know exactly why that happens. It can be:

Cigarette smoke, air pollution, and heavy drinking can raise your odds of getting cataracts.

  • Age-related, as you get older
  • Congenital, when babies are born with them or they form in childhood
  • Secondary, that happen as a result of other medical conditions, medications, toxic substances, ultraviolet light, or radiation
  • Traumatic, after an injury to the eye

From: What Are Cataracts? WebMD Medical Reference

SOURCES:

National Eye Institute: "Facts About Cataract."

NIHSeniorHealth.com: "Cataract."

American Academy of Ophthalmology: "Cataracts."

Reviewed by Alan Kozarsky on March 14, 2019

SOURCES:

National Eye Institute: "Facts About Cataract."

NIHSeniorHealth.com: "Cataract."

American Academy of Ophthalmology: "Cataracts."

Reviewed by Alan Kozarsky on March 14, 2019

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What are symptoms of cataracts?

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